Nuclear reaction Reaction (physics), as defined by Newton's third law Chain reaction (disambiguation) Adverse drug reaction Allergic reaction Reflex,...

chemical reaction is a process that leads to the chemical transformation of one set of chemical substances to another. When chemical reactions occur, the...

In psychoanalytic theory, reaction formation (German: Reaktionsbildung) is a defense mechanism in which emotions, desires and impulses that are anxiety-producing...

opposite reaction force on the first. The third law is also more generally stated as: "To every action there is always opposed an equal reaction: or the...

chain reaction is a sequence of reactions where a reactive product or by-product causes additional reactions to take place. In a chain reaction, positive...

In ecology and genetics, a reaction norm, also called a norm of reaction, describes the pattern of phenotypic expression of a single genotype across a...

A paradoxical reaction (or paradoxical effect) is an effect of a chemical substance, such as a medical drug, that is opposite to what would usually be...

The Maillard reaction (/maɪˈjɑːr/ MY-ar; French: [majaʁ]) is a chemical reaction between amino acids and reducing sugars to create melanoidins, the compounds...

the historiography of the French Revolution, the Thermidorian Reaction (French: Réaction thermidorienne or Convention thermidorienne, "Thermidorian Convention")...

A side reaction is a chemical reaction that occurs at the same time as the actual main reaction, but to a lesser extent. It leads to the formation of by-product...

In organic chemistry, the Malaprade reaction or Malaprade oxidation is a reaction that converts vicinal diols by periodic acid or a periodate salt to...

In nuclear physics and nuclear chemistry, a nuclear reaction is a process in which two nuclei, or a nucleus and an external subatomic particle, collide...

A reaction video, or a react video, is a video in which one or more persons react to something. Videos showing the emotional reactions, criticism or commentary...

The Sandmeyer reaction is a chemical reaction used to synthesize aryl halides from aryl diazonium salts using copper salts as reagents or catalysts. It...

Carbothermic reactions are chemical reactions involving reduction of substances, often metal oxides (O2-), using carbon (C) as the reducing agent. Depending...

The Bosch reaction is a catalytic chemical reaction between carbon dioxide (CO2) and hydrogen (H2) that produces elemental carbon (C,graphite), water...

The aldol reaction (aldol addition) is a reaction in organic chemistry that combines two carbonyl compounds (e.g. aldehydes or ketones) to form a new...

The reaction rate or rate of reaction is the speed at which a chemical reaction takes place, defined as proportional to the increase in the concentration...

Nuclear fusion is a reaction in which two or more atomic nuclei combine to form a larger nucleus. The difference in mass between the reactants and products...

reaction is a chemical reaction in which the type of chemical bonds broken in the reactant are the same as the type of bonds formed in the reaction product...

A reaction wheel (RW) is an electric motor attached to a flywheel, which, when its rotation speed is changed, causes a counter-rotation proportionately...

The Wittig reaction or Wittig olefination is a chemical reaction of an aldehyde or ketone with a triphenyl phosphonium ylide called a Wittig reagent....

Barton reaction refers to one of several organic-chemical reactions named after Sir Derek Barton. It may be: the Barton nitrite ester reaction, forming...

thermochemistry, an exothermic reaction is a "reaction for which the overall standard enthalpy change ΔH⚬ is negative." Exothermic reactions usually release stored...

A stripping reaction may refer to: Stripping reaction (physics) Stripping reaction (chemistry) This disambiguation page lists articles associated with...

chemistry and chemical engineering, extent of reaction is a quantity that measures the extent to which the reaction has proceeded. Often, it refers specifically...

The Stille reaction is a chemical reaction widely used in organic synthesis. The reaction involves the coupling of two organic groups, one of which is...

REE-doks, reduction–oxidation or oxidation–reduction) is a type of chemical reaction in which the oxidation states of the reactants change. Oxidation is the...

The Mazzotti reaction, first described in 1948, is a symptom complex seen in patients after undergoing treatment of nematode infestation, particularly...

Reaction dynamics is a field within physical chemistry, studying why chemical reactions occur, how to predict their behavior, and how to control them...

The Pauly reaction is a chemical test used for detecting the presence of tyrosine or histidine in proteins. It is named after German chemist Hermann Pauly...

In chemical thermodynamics, the reaction quotient ( Q r {\displaystyle Q_{\mathrm {r} }} or just Q {\displaystyle Q} ) is a dimensionless quantity that...

cell, it is called an electrochemical reaction. In electrochemical reactions, unlike in other chemical reactions, electrons are not transferred directly...

"Psychotic Reaction" is the debut single by the American garage rock band Count Five, released in June 1966 on their debut studio album of the same name...

Anaphylaxis is a serious and potentially fatal allergic reaction that can progress rapidly. It typically causes more than one of the following: an itchy...

μεταβολή (metabolē) 'change') refers to the set of life-sustaining chemical reactions that occur within living organisms. The three main functions of metabolism...

of a chemical reaction due to an added substance known as a catalyst (/ˈkætəlɪst/ KAT-əl-ist). Catalysts are not consumed by the reaction and remain unchanged...

nucleophilic substitution (SN2) is a type of reaction mechanism that is common in organic chemistry. In the SN2 reaction, a strong nucleophile forms a new bond...

The unimolecular nucleophilic substitution (SN1) reaction is a substitution reaction in organic chemistry. The Hughes-Ingold symbol of the mechanism expresses...

additional reactions to take place. Chain reaction or The Chain reaction may also refer to: Chain Reaction (game show), an American game show Chain Reaction (radio)...

Support Forces A rapid reaction force / rapid response force (RRF), quick reaction force / quick response force (QRF), immediate reaction force (IRF), rapid...

Gomberg reaction may refer to: Gomberg–Bachmann reaction, an aryl–aryl coupling reaction via a diazonium salt Gomberg radical reaction, forming a triphenylmethyl...

Light reaction may refer to: Light-dependent reactions Pupillary light reflex This disambiguation page lists articles associated with the title Light reaction...

The Prins reaction is an organic reaction consisting of an electrophilic addition of an aldehyde or ketone to an alkene or alkyne followed by capture...

A substitution reaction (also known as single displacement reaction or single substitution reaction) is a chemical reaction during which one functional...

The Crabbé reaction (or Crabbé allene synthesis, Crabbé–Ma allene synthesis) is an organic reaction that converts a terminal alkyne and aldehyde (or, sometimes...

Reaction Engines Limited (REL) was a British aerospace manufacturer founded in 1989 and based in Oxfordshire, England. The company also operated in the...

In organic chemistry, the desulfonation reaction is the hydrolysis of aryl and naphthyl sulfonic acids: RC6H4SO3H + H2O → RC6H5 + H2SO4 It is the reverse...

The Koch reaction is an organic reaction for the synthesis of tertiary carboxylic acids from alcohols or alkenes and carbon monoxide. Some commonly industrially...

Reaction–diffusion systems are mathematical models that correspond to several physical phenomena. The most common is the change in space and time of the...

structure, properties, behavior and the changes they undergo during reactions with other substances. Chemistry also addresses the nature of chemical...

On-water reactions are a group of organic reactions that take place as an emulsion in water and have an unusual reaction rate acceleration compared with...

The Mitsunobu reaction is an organic reaction that converts an alcohol into a variety of functional groups, such as an ester, using triphenylphosphine...

The Reformatsky reaction (sometimes transliterated as Reformatskii reaction) is an organic reaction which condenses aldehydes or ketones with α-halo esters...

An initial reaction force (IRF), also known as an internal reaction force, or extreme reaction force (ERF) to inmates, is a type of small-scale riot squad...

physics, a nuclear chain reaction occurs when one single nuclear reaction causes an average of one or more subsequent nuclear reactions, thus leading to the...

elimination reaction is a type of organic reaction in which two substituents are removed from a molecule in either a one- or two-step reaction mechanism...

The Suzuki reaction or Suzuki coupling is an organic reaction that uses a palladium complex catalyst to cross-couple a boronic acid to an organohalide...

elimination reactions, substitution reactions, pericyclic reactions, rearrangement reactions, photochemical reactions and redox reactions. In organic...

Reaction injection molding (RIM) is similar to injection molding except thermosetting polymers are used, which requires a curing reaction to occur within...

The Appel reaction is an organic reaction that converts an alcohol into an alkyl chloride using triphenylphosphine and carbon tetrachloride. The use of...

The Kirsanov reaction is a method for the synthesis of certain organophosphorus compounds. In this reaction a tertiary phosphine is combined with a halogen...

An elementary reaction is a chemical reaction in which one or more chemical species react directly to form products in a single reaction step and with...

The Cannizzaro reaction, named after its discoverer Stanislao Cannizzaro, is a chemical reaction which involves the base-induced disproportionation of...

The Grignard reaction (French: [ɡʁiɲaʁ]) is an organometallic chemical reaction in which, according to the classical definition, carbon alkyl, allyl, vinyl...

chemical reactions caused by enzyme catalysis, and a subfield of biochemistry. It is concerned with the reaction rate of chemical reactions, their effects...

The Fernandez reaction is a reaction that occurs to signal a positive result in the lepromin skin test for leprosy. The reaction occurs in the skin at...

Reaction wood in a woody plant is wood that forms in place of normal wood as a response to gravity, where the cambial cells are oriented other than vertically...

Combat stress reaction (CSR) or combat neurosis is acute behavioral disorganization as a direct result of the trauma of war. Also known as "combat fatigue"...

In chemical thermodynamics, an exergonic reaction is a chemical reaction where the change in the free energy is negative (there is a net release of free...

Therefore, sperm cells go through a process known as the acrosome reaction, which is the reaction that occurs in the acrosome of the sperm as it approaches the...

chemistry, a half reaction (or half-cell reaction) is either the oxidation or reduction reaction component of a redox reaction. A half reaction is obtained...

reaction (from Greek ἔνδον (endon) 'within' and ἔργον (ergon) 'work'; also called a heat absorbing nonspontaneous reaction or an unfavorable reaction)...

The carbylamine reaction (also known as the Hoffmann isocyanide synthesis) is the synthesis of an isocyanide by the reaction of a primary amine, chloroform...

this reaction. The organic reaction also goes by the name Bucherer-Lepetit reaction or (incorrectly) the Bucherer-Le Petit reaction. The reaction is used...

Alcohol flush reaction is a condition in which a person develops flushes or blotches associated with erythema on the face, neck, shoulders, ears, and in...

In organic chemistry, a cyanohydrin reaction is an organic reaction in which an aldehyde (−CH=O) or ketone (>C=O) reacts with a cyanide anion (N≡C−) or...

hunting reaction or hunting response is a process of alternating vasoconstriction and vasodilation in extremities exposed to cold. The term Lewis reaction is...

The Ullmann reaction or Ullmann coupling, named after Fritz Ullmann, couples two aryl or alkyl groups with the help of copper. The reaction was first reported...

In organoboron chemistry, the Brellochs reaction provides a way to generate the monocarboranes. The Brellochs method uses formaldehyde to insert single...

chemistry, a reaction intermediate, or intermediate, is a molecular entity arising within the sequence of a stepwise chemical reaction. It is formed...

The Hinsberg reaction is a chemical test for the detection of primary, secondary and tertiary amines. The reaction was first described by Oscar Hinsberg...

An insertion reaction is a chemical reaction where one chemical entity (a molecule or molecular fragment) interposes itself into an existing bond of typically...

The Sabatier reaction or Sabatier process produces methane and water from a reaction of hydrogen with carbon dioxide at elevated temperatures (optimally...

In chemistry, a template reaction is any of a class of ligand-based reactions that occur between two or more adjacent coordination sites on a metal center...

In organic chemistry, a condensation reaction is a type of chemical reaction in which two molecules are combined to form a single molecule, usually with...

The Henry reaction is a classic carbon–carbon bond formation reaction in organic chemistry. Discovered in 1895 by the Belgian chemist Louis Henry [fr]...

The Heck reaction (also called the Mizoroki–Heck reaction) is the chemical reaction of an unsaturated halide (or triflate) with an alkene in the presence...

In chemistry, a reaction coordinate is an abstract one-dimensional coordinate chosen to represent progress along a reaction pathway. Where possible it...

The Chichibabin reaction (pronounced ' (chē')-chē-bā-bēn) is a method for producing 2-aminopyridine derivatives by the reaction of pyridine with sodium...

The DeMayo reaction or Ciamician-DeMayo reaction is a photochemical reaction in which the enol of a 1,3-diketone reacts with an alkene (or another species...

Id reactions (also known as disseminated eczema and generalized eczema) are types of acute dermatitis developing after days or weeks at skin locations...

The Delépine reaction is the organic synthesis of primary amines (4) by reaction of benzyl or alkyl halides (1) with hexamethylenetetramine (2) followed...

The Staudinger reaction is a chemical reaction of an organic azide with a phosphine or phosphite produces an iminophosphorane. The reaction was discovered...

In chemistry, the haloform reaction (also referred to as the Lieben haloform reaction) is a chemical reaction in which a haloform (CHX3, where X is a halogen)...

chemistry, a reaction step of a chemical reaction is defined as: "An elementary reaction, constituting one of the stages of a stepwise reaction in which a...

organic chemistry, a coupling reaction is a type of reaction in which two reactant molecules are bonded together. Such reactions often require the aid of a...

In turbomachinery, degree of reaction or reaction ratio (denoted R) is defined as the ratio of the change in static pressure in the rotating blades of...

a dehydration reaction is a chemical reaction that involves the loss of an H2O from the reacting molecule(s) or ion(s). This reaction results in the...

In organic chemistry, the Mannich reaction is a three-component organic reaction that involves the amino alkylation of the α-position of a ketone or aldehyde...

cascade reaction, also known as a domino reaction or tandem reaction, is a chemical process that comprises at least two consecutive reactions such that...

Reaction is the second studio album by American R&B singer Rebbie Jackson. The album was released on October 7, 1986 and spawned two mildly successful...

In organic chemistry, the Nef reaction is an organic reaction describing the acid hydrolysis of a salt of a primary or secondary nitroalkane (R−NO2) to...

addition reaction is an organic reaction in which two or more molecules combine to form a larger molecule called the adduct. An addition reaction is limited...

Acute stress reaction (ASR), also known as psychological shock, mental shock, or simply shock, as well as acute stress disorder (ASD), is a psychological...

Fake Reaction is a British television comedy panel game shown on ITV2 that ran for two series from 3 January 2013 to 6 March 2014 presented by Matt Edmondson...

The Étard reaction is a chemical reaction that involves the direct oxidation of an aromatic or heterocyclic bound methyl group to an aldehyde using chromyl...

method of electric power generation from heat released by nuclear fusion reactions. In fusion, two light atomic nuclei combine to form a heavier nucleus...

Ferrier reaction can refer to two different chemical reactions: Ferrier rearrangement Ferrier carbocyclization (Ferrier II reaction) This disambiguation...

In chemistry, a concerted reaction is a chemical reaction in which all bond breaking and bond making occurs in a single step. Reactive intermediates or...

the Menshutkin reaction converts a tertiary amine into a quaternary ammonium salt by reaction with an alkyl halide. Similar reactions occur when tertiary...

The Bunsen reaction is a chemical reaction that describes water, sulfur dioxide, and iodine reacting to form sulfuric acid and hydrogen iodide: 2H2O +...

A reaction ferry is a cable ferry that uses the reaction of the current of a river against a fixed tether to propel the vessel across the water. Such ferries...

The Bargellini reaction is a chemical reaction discovered in 1906 by Italian chemist Guido Bargellini. The original reaction was a mixture of the reagents...

Pagan reaction is reversal of Christianization. It may refer to: Pagan reaction in Rome under emperor Julian the Apostate (4th century) Pagan reaction in...

A direct combination reaction (also known as a synthesis reaction) is a reaction where two or more elements or compounds (reactants) combine to form a...

A Norrish reaction, named after Ronald George Wreyford Norrish who developed the reaction(s) during the 1930's primarily through his work at Cambridge...

The Mehler reaction is named after Alan H. Mehler, who, in 1951, presented data to the effect that isolated chloroplasts reduce oxygen to form hydrogen...

Positive Reaction may refer to: Positive Reaction (album), a 1990 album by Caveman Positive Reaction (song), a 1988 song by Mandy This disambiguation...

A Jarisch–Herxheimer reaction is a sudden and typically transient reaction that may occur within 24 hours of being administered antibiotics for an infection...

In organic chemistry, the Schmidt reaction is an organic reaction in which an azide reacts with a carbonyl derivative, usually an aldehyde, ketone, or...

imine (a hydrophosphonylation reaction). The reaction is closely related to the three-component Kabachnik–Fields reaction, where an amine, phosphite, and...

Anaplerotic reactions, or Anaplerosis, coined by Hans Kornberg and originating from the Greek ἀνά= 'up' and πληρόω= 'to fill', are chemical reactions that form...

The Duff reaction (after James Cooper Duff) also known as the hexamine aromatic formylation, is a formylation reaction used in organic chemistry for the...

reaction (or named reaction) is a chemical reaction named after its discoverer(s) or developer(s). Among the tens of thousands of organic reactions that...

Armed Reaction (Chinese: 陀槍師姐; Jyutping: to4 coeng1 si1 ze2) is a 1998 Hong Kong modern cop drama produced by TVB. The drama stars Bobby Au-yeung and Esther...

The Eschweiler–Clarke reaction (also called the Eschweiler–Clarke methylation) is a chemical reaction whereby a primary (or secondary) amine is methylated...

The Nicholas reaction is an organic reaction where a dicobalt octacarbonyl-stabilized propargylic cation is reacted with a nucleophile. Oxidative demetallation...

A dyotropic reaction (from the Greek dyo, meaning two) in organic chemistry is a type of organic reaction and more specifically a pericyclic valence isomerization...

In organic chemistry, the Murai reaction is an organic reaction that uses C-H activation to create a new C-C bond between a terminal or strained internal...

The cortical reaction is a process initiated during fertilization that prevents polyspermy, the fusion of multiple sperm with one egg. In contrast to the...

The Hill reaction is the light-driven transfer of electrons from water to Hill reagents (non-physiological oxidants) in a direction against the chemical...

production, a reaction shot is a shot which cuts away from the main scene in order to show the reaction of a character to it. The reaction shot is a basic...

A Belousov–Zhabotinsky reaction, or BZ reaction, is one of a class of reactions that serve as a classical example of non-equilibrium thermodynamics, resulting...

Delayed Reaction is Soul Asylum's 10th full-length studio album and follow-up to their 2006 studio release The Silver Lining. It was released on July 17...

Leuckart reaction is the chemical reaction that converts aldehydes or ketones to amines. The reaction is an example of reductive amination. The reaction, named...

The Bray–Liebhafsky reaction is a chemical clock first described by William C. Bray in 1921 and the first oscillating reaction in a stirred homogeneous...

reaction is an organic reaction for the decarboxylation of carboxylic acids to alkyl halides with lead(IV) acetate and a lithium halide. The reaction...

A foreign body reaction (FBR) is a typical tissue response to a foreign body within biological tissue. It usually includes the formation of a foreign body...

In organic chemistry, a sigmatropic reaction (from Greek τρόπος (trópos) 'turn') is a pericyclic reaction wherein the net result is one sigma bond (σ-bond)...

The Perkin reaction is an organic reaction developed by English chemist William Henry Perkin in 1868 that is used to make cinnamic acids. It gives an...

The Catellani reaction was discovered by Marta Catellani (Università degli Studi di Parma, Italy) and co-workers in 1997. The reaction uses aryl iodides...

The quellung reaction, also called the Neufeld reaction, is a biochemical reaction in which antibodies bind to the bacterial capsule of Streptococcus...

In chemistry, a reaction mechanism is the step by step sequence of elementary reactions by which overall chemical reaction occurs. A chemical mechanism...

A multi-component reaction (MCR), sometimes referred to as a multi-component assembly process (MCAP), is a chemical reaction where three or more compounds...

Cold fusion is a hypothesized type of nuclear reaction that would occur at, or near, room temperature. It would contrast starkly with the "hot" fusion...

The Jaffe reaction is a colorimetric method used in clinical chemistry to determine creatinine levels in blood and urine. In 1886, Max Jaffe (1841–1911)...

Organic reductions or organic oxidations or organic redox reactions are redox reactions that take place with organic compounds. In organic chemistry oxidations...

A dearomatization reaction is an organic reaction in which the reactants are arenes and the products permanently lose their aromaticity. It is of some...

her most successful single release. She released two more studio albums: Reaction (1986) and R U Tuff Enuff (1988). After a seven-year hiatus, Jackson returned...

In organic chemistry, a coarctate reaction is a concerted reaction whose transition state involves two rings, in which at least one atom undergoes the...

The Marschalk reaction in chemistry is the sodium dithionite promoted reaction of a phenolic anthraquinone with an aldehyde to yield a substituted phenolic...

The Sommelet reaction is an organic reaction in which a benzyl halide is converted to an aldehyde by action of hexamine and water. It is named after the...

Gould–Jacobs reaction is an organic synthesis for the preparation of quinolines and 4‐hydroxyquinoline derivatives. The Gould–Jacobs reaction is a series...

Aluminothermic reactions are exothermic chemical reactions using aluminium as the reducing agent at high temperature. The process is industrially useful...

A reversible reaction is a reaction in which the conversion of reactants to products and the conversion of products to reactants occur simultaneously....

A reaction calorimeter is a calorimeter that measures the amount of energy released (in exothermic reactions) or absorbed (in endothermic reactions) by...

Common Reaction is the debut album from Uh Huh Her, which was released on August 19, 2008, in the United States. The electropop album features Camila Grey's...

In organic chemistry, the Fischer reaction is the conversion of an aryl sulfonic acid to an aryl chloride using chlorine: ArSO3H + Cl2 → ArCl + ClSO3H...

The Boekelheide reaction is a rearrangement of α-picoline-N-oxides to hydroxymethylpyridines. It is named after Virgil Boekelheide who first reported it...

Reaction.life is a British news website that features reporting and analysis on politics, economics, culture and ideas. Reaction is based in London and...

Prato reaction is a particular example of the well-known 1,3-dipolar cycloaddition of azomethine ylides to olefins. In fullerene chemistry this reaction refers...

"Love Reaction" is a song by American performance artist Divine, released as a single in 1983. The song was later included on the 1984 compilation album...

reaction is the related conversions of trialkyl to α-hydroxy phosphonates by the addition to carbonyl compounds. In terms of mechanism, the reaction involves...

The Scholl reaction is a coupling reaction between two arene compounds with the aid of a Lewis acid and a protic acid. It is named after its discoverer...

Thorpe reaction is a chemical reaction described as a self-condensation of aliphatic nitriles catalyzed by base to form enamines. The reaction was discovered...

Tishchenko reaction is an organic chemical reaction that involves disproportionation of an aldehyde in the presence of an alkoxide. The reaction is named...

Nuclear fission is a reaction in which the nucleus of an atom splits into two or more smaller nuclei. The fission process often produces neutrons and gamma...

A periosteal reaction is the formation of new bone in response to injury or other stimuli of the periosteum surrounding the bone. It is most often identified...

In organosulfur chemistry, the thiol-ene reaction (also alkene hydrothiolation) is an organic reaction between a thiol (R−SH) and an alkene (R2C=CR2)...

In organic chemistry, the oxymercuration reaction is a chemical reaction that uses mercury salts to transform an alkene (R2C=CR2) into an alcohol. The...

The iodine clock reaction, sometimes called the Landolt reaction, is a classical chemical clock experiment that is performed as a mechanism to demonstrate...

TNA Reaction is an American professional wrestling-focused documentary-style television program by Total Nonstop Action Wrestling (TNA) that aired in the...

The Gattermann reaction (also known as the Gattermann formylation and the Gattermann salicylaldehyde synthesis) is a chemical reaction in which aromatic...

In physics, and in particular in biomechanics, the ground reaction force (GRF) is the force exerted by the ground on a body in contact with it. For example...

Unchained Reaction is a science and engineering reality game show that aired on the Discovery Channel. It was judged and executive-produced by Adam Savage...

immunology, the Arthus reaction (/ˌɑːrˈtjuːs/) is a type of local type III hypersensitivity reaction. Type III hypersensitivity reactions are immune complex-mediated...

In electrochemistry, an electrochemical reaction mechanism is the step-by-step sequence of elementary steps, involving at least one outer-sphere electron...

Reaction of degeneration is a medical condition caused by a change in the electrical response of the muscles due to muscle denervation. Lack of muscle...

chemistry, the Jocic reaction, also called the Jocic–Reeve reaction (named after Zivojin Jocic and Wilkins Reeve) is a name reaction that generates α-substituted...

Hydroboration–oxidation reaction is a two-step hydration reaction that converts an alkene into an alcohol. The process results in the syn addition of...

The Simmons–Smith reaction is an organic cheletropic reaction involving an organozinc carbenoid that reacts with an alkene (or alkyne) to form a cyclopropane...

In chemistry, a hydration reaction is a chemical reaction in which a substance combines with water. In organic chemistry, water is added to an unsaturated...

The Adamkiewicz reaction is part of a biochemical test used to detect the presence of the amino acid tryptophan in proteins. When concentrated sulfuric...

The xanthoproteic reaction (xanthoprotic test) is a method that can be used to detect a presence of protein soluble in a solution, using concentrated nitric...

The alkali–silica reaction (ASR), also commonly known as concrete cancer, is a deleterious internal swelling reaction that occurs over time in concrete...

In chemistry, an acid–base reaction is a chemical reaction that occurs between an acid and a base. It can be used to determine pH via titration. Several...

Products are the chemical species formed from chemical reactions. During a chemical reaction, reactants are transformed into products after passing through...

chemistry, cheletropic reactions, also known as chelotropic reactions, are a type of pericyclic reaction (a chemical reaction that involves a transition...

The polymerase chain reaction (PCR) is a laboratory method widely used to amplify copies of specific DNA sequences rapidly, to enable detailed study. PCR...

Imperative Reaction was an American electro-industrial band founded in 1996 by Ted Phelps and David Andrecht from the remains of the band Digital Neural...

Chemical reaction engineering (reaction engineering or reactor engineering) is a specialty in chemical engineering or industrial chemistry dealing with...

Chain Reaction is a 1996 American science fiction action thriller film directed by Andrew Davis and starring Keanu Reeves, Morgan Freeman, Rachel Weisz...

An oligopolistic reaction is a concept from economics introduced by Frederick T. Knickerbocker to explain why firms follow rivals into foreign markets...

The Perkow reaction is an organic reaction in which a trialkyl phosphite ester reacts with a haloketone to form a dialkyl vinyl phosphate and an alkyl...

In organic chemistry, the Wurtz reaction, named after Charles Adolphe Wurtz, is a coupling reaction in which two alkyl halides are treated with sodium...

The term leukemoid reaction describes an increased white blood cell count (> 50,000 cells/μL), which is a physiological response to stress or infection...

The Atherton-Todd reaction is a name reaction in organic chemistry, which goes back to the British chemists F. R. Atherton, H. T. Openshaw and A. R. Todd...

The Pinner reaction refers to the acid catalysed reaction of a nitrile with an alcohol to form an imino ester salt (alkyl imidate salt); this is sometimes...

The Haber–Weiss reaction generates •OH (hydroxyl radicals) from H2O2 (hydrogen peroxide) and superoxide (•O2−) catalyzed by iron ions. It was first proposed...

The Chain Reaction is a 1980 Australian science fiction thriller film written and directed by Ian Barry. The film stars Steve Bisley and Arna-Maria Winchester...

The Diels–Reese Reaction is a reaction between hydrazobenzene and dimethyl acetylenedicarboxylate (or related esters) first reported in 1934 by Otto Diels...

A reaction engine is an engine or motor that produces thrust by expelling reaction mass (reaction propulsion), in accordance with Newton's third law of...

Onion skin periosteal reaction also known as multilayered periosteal reaction or lamellated periosteal reaction refers to the multi layered concentric...

In chemical kinetics, a reaction rate constant or reaction rate coefficient (⁠ k {\displaystyle k} ⁠) is a proportionality constant which quantifies the...

The Vilsmeier–Haack reaction (also called the Vilsmeier reaction) is the chemical reaction of a substituted formamide (1) with phosphorus oxychloride and...

Hoesch reaction or Houben–Hoesch reaction is an organic reaction in which a nitrile reacts with an arene compound to form an aryl ketone. The reaction is...

Braun reaction is an organic reaction in which a tertiary amine reacts with cyanogen bromide to an organocyanamide. An example is the reaction of N...

thiol-yne reaction (also known as alkyne hydrothiolation) is an organic reaction between a thiol (−SH) and an alkyne (−C≡CH). The reaction product is...

The Michaelis–Becker reaction is the reaction of a hydrogen (thio)phosphonate with a base, followed by a nucleophilic substitution of phosphorus on a haloalkane...

mistakenly identifies an ordinarily harmless allergen as a threat. Allergic reactions give rise to allergic diseases such as hay fever, allergic conjunctivitis...

See redirects for discussion to help reach a consensus.› The Rothemund reaction is a condensation/oxidation process that converts four pyrroles and four...

Reaction Motors, Inc. (RMI) was an early American maker of liquid-fueled rocket engines, located in New Jersey. RMI engines with 6,000 lbf (27 kN) thrust...

The Corey–Seebach reaction, or Seebach Umpolung is a name reaction of organic chemistry that allows for acylation by converting aldehydes into lithiated...

Finkelstein reaction, named after the German chemist Hans Finkelstein, is a type of SN2 reaction (substitution nucleophilic bimolecular reaction) that involves...

A reaction control system (RCS) is a spacecraft system that uses thrusters to provide attitude control and translation. Alternatively, reaction wheels...

Combustion, or burning, is a high-temperature exothermic redox chemical reaction between a fuel (the reductant) and an oxidant, usually atmospheric oxygen...

The Tipson–Cohen reaction is a name reaction first discovered by Stuart Tipson and Alex Cohen at the National Bureau of Standards in Washington D.C. The...

The Sakurai reaction (also known as the Hosomi–Sakurai reaction) is the chemical reaction of carbon electrophiles (such as a ketone shown here) with...

The von Richter reaction, also named von Richter rearrangement, is a name reaction in the organic chemistry. It is named after Victor von Richter, who...

"Reaction to Action" is the third single taken from the album Agent Provocateur by the band Foreigner. It was written by Lou Gramm and Mick Jones. Foreigner...

intramolecular Heck reaction (IMHR) in chemistry is the coupling of an aryl or alkenyl halide with an alkene in the same molecule. The reaction may be used to...

A reaction inhibitor is a substance that decreases the rate of, or prevents, a chemical reaction. A catalyst or an Enzyme activator, in contrast, is a...

The Boudouard reaction, named after Octave Leopold Boudouard, is the redox reaction of a chemical equilibrium mixture of carbon monoxide and carbon dioxide...

When ignited by heat or chemical reaction, thermite undergoes an exothermic reduction-oxidation (redox) reaction. Most varieties are not explosive,...

In geochemistry, a metamorphic reaction is a chemical reaction that takes place during the geological process of metamorphism wherein one assemblage of...

The Pellizzari reaction was discovered in 1911 by Guido Pellizzari, and is the organic reaction of an amide and a hydrazide to form a 1,2,4-triazole. The...

"proton–proton chain reaction", it is not a chain reaction in the normal sense. In most nuclear reactions, a chain reaction designates a reaction that produces...

Action Reaction is the debut album by American post-punk band Get Smart!, released on Enigma Records' "Fever" imprint in 1984. Initially, Nebraska's "Capitol...

Daisychain Reaction is the second album by American alternative rock band Poster Children. It was originally released in 1991 on Twin/Tone Records, and...

The Pauson–Khand (PK) reaction is a chemical reaction, described as a [2+2+1] cycloaddition. In it, an alkyne, an alkene, and carbon monoxide combine...

In organic chemistry, the Diels–Alder reaction is a chemical reaction between a conjugated diene and a substituted alkene, commonly termed the dienophile...

Alkali–aggregate reaction is a term mainly referring to a reaction which occurs over time in concrete between the highly alkaline cement paste and non-crystalline...

The Kulinkovich reaction describes the organic synthesis of substituted cyclopropanols through reaction of esters with dialkyl­dialkoxy­titanium reagents...

Violent Reaction were an English straight edge hardcore punk band. Originally a solo-project of Tom Pimlott in Liverpool, the band gained additional members...

Japp–Klingemann reaction is a chemical reaction used to synthesize hydrazones from β-keto-acids (or β-keto-esters) and aryl diazonium salts. The reaction is named...

Evans–Tishchenko reaction is the diastereoselective reduction of β-hydroxy ketones to the corresponding 1,3-anti diol monoesters. The reaction employs a Lewis...

The formose reaction, discovered by Aleksandr Butlerov in 1861, and hence also known as the Butlerov reaction, involves the formation of sugars from formaldehyde...

The Friedel–Crafts reactions are a set of reactions developed by Charles Friedel and James Crafts in 1877 to attach substituents to an aromatic ring. Friedel–Crafts...

The Hunsdiecker reaction (also called the Borodin reaction or the Hunsdiecker–Borodin reaction) is a name reaction in organic chemistry whereby silver...

reactionary philosophical and political movement. It can be understood as a reaction against values and ideologies associated with Enlightenment, advocating...

Disulfiram-alcohol reaction (DAR) is the effect of the interaction in the human body of alcohol drunk with disulfiram or some types of mushrooms. The DAR...

also known as reaction kinetics, is the branch of physical chemistry that is concerned with understanding the rates of chemical reactions. It is different...

The (n-p) reaction, or (n,p) reaction, is an example of a nuclear reaction. It is the reaction which occurs when a neutron enters a nucleus and a proton...

The Abderhalden reaction was a blood test for pregnancy developed by Emil Abderhalden. In 1909 Abderhalden found that on identification of a foreign protein...

Quick Reaction Alert (QRA) is the state of readiness and modus operandi of air defence maintained at all hours of the day by NATO air forces. The United...

Chef Reactions (born 1982 or 1983) is an American social media personality known for his short-form videos in which he sardonically reacts to and critiques...

Action Réaction (Action Reaction) is a French Canadian game show, an adaptation of the Bob Stewart Productions game show Chain Reaction, in which players...

Nierenstein reaction is an organic reaction describing the conversion of an acid chloride into a haloketone with diazomethane. It is an insertion reaction in that...

The Acree–Rosenheim reaction is a chemical test used for detecting the presence of tryptophan in proteins. A protein mixture is mixed with formaldehyde...

and short roles, without changing order of vowel sounds Salt metathesis reaction, exchange of bonds between two reacting chemical species Olefin metathesis...

The Darzens reaction (also known as the Darzens condensation or glycidic ester condensation) is the chemical reaction of a ketone or aldehyde with an...

The Guerbet reaction, named after Marcel Guerbet (1861–1938), is an organic reaction that converts a primary alcohol into its β-alkylated dimer alcohol...

The Zincke reaction is an organic reaction, named after Theodor Zincke, in which a pyridine is transformed into a pyridinium salt by reaction with 2...

reaction, also Arias-Stella phenomenon, is a benign change in the endometrium associated with the presence of chorionic tissue. Arias-Stella reaction...

The Favorskii reaction is an organic chemistry reaction between an alkyne and a carbonyl group, under basic conditions. The reaction was discovered in...

collision/reaction cell is a device used in inductively coupled plasma mass spectrometry to remove interfering ions through ion/neutral reactions. The collision...

reactions (substitution or addition) such as the Hofmann–Löffler reaction or the Barton reaction Fragmentation reactions include the Norrish reaction...

reaction, named for the Russian-American chemist Moses Gomberg and the American chemist Werner Emmanuel Bachmann, is an aryl-aryl coupling reaction via...

Landau reflex or Landau reaction refers to a reflex seen in infants when held horizontally in the air in the prone position. It emerges 3 months after...

Strong Reaction is the debut album of Pegboy. It was released in 1991 through Quarterstick Records. Trouser Press wrote that "quibbles about the occasionally...

The Petasis reaction (alternatively called the Petasis borono–Mannich (PBM) reaction) is the multi-component reaction of an amine, a carbonyl, and a vinyl-...

immunity. Superimposed acute "reactions" represent abrupt shifts on this immunologic continuum. Type 1 (reversal) reactions, usually in borderline disease...

media reaction or solid-state reaction or solventless reaction is a chemical reaction performed in the absence of a solvent. Dry media reactions have been...

A chemical reaction is autocatalytic if one of the reaction products is also a catalyst for the same reaction. Many forms of autocatalysis are recognized...

interplay between differential diffusion of chemical species and chemical reaction. The instability mechanism is surprising because a pure diffusion, such...

The Rhetoric of Reaction: Perversity, Futility, Jeopardy is a book by theorist Albert O. Hirschman which analyzes the rhetoric of conservatism that has...

In organic chemistry, the Ugi reaction is a multi-component reaction involving a ketone or aldehyde, an amine, an isocyanide and a carboxylic acid to form...

The Schenck ene reaction or the Schenk reaction is the reaction of singlet oxygen with alkenes to yield hydroperoxides. The hydroperoxides can be reduced...

Reactions on surfaces are reactions in which at least one of the steps of the reaction mechanism is the adsorption of one or more reactants. The mechanisms...

organic chemistry, the ene reaction (also known as the Alder-ene reaction by its discoverer Kurt Alder in 1943) is a chemical reaction between a relatively...

nuclear physics and the biological sciences. He conceived the nuclear chain reaction in 1933, and patented the idea in 1936. In late 1939 he wrote the Einstein–Szilard...

In chemistry, the oxygen reduction reaction refers to the reduction half reaction whereby O2 is reduced to water or hydrogen peroxide. In fuel cells, the...

Betti reaction is a chemical addition reaction of aldehydes, primary aromatic amines and phenols producing α-aminobenzylphenols. The Betti reaction is a...

The Ivanov reaction is a carbon–carbon bond-forming chemical reaction involving the addition of dianions (endiolates) of aryl acetic acids (Ivanov reagents)...

The Herz reaction, named after the chemist Richard Herz, is the chemical conversion of an aniline to the benzodithiazolium salt by its reaction with disulfur...

The Prévost reaction is a chemical reaction in which an alkene is converted by iodine and the silver salt of benzoic acid to a vicinal diol with anti...

an addition-elimination reaction is a two-step reaction process of an addition reaction followed by an elimination reaction. This gives an overall effect...

a protein, that acts as a biological catalyst, accelerating chemical reactions without being consumed in the process. The molecules on which enzymes...

oxo-Diels–Alder reaction (also called an oxa-Diels–Alder reaction) is an organic reaction and a variation of the Diels–Alder reaction in which a suitable...

The Rapid Reaction Corps — France (RRC-FR) was a corps headquarters, operating under the command of the French Army's Commandement de la Force et des Opérations...

In theoretical physics, back-reaction (or backreaction) is often necessary to calculate the self-consistent behaviour of a particle or an object in an...

solid formed is called the precipitate. In case of an inorganic chemical reaction leading to precipitation, the chemical reagent causing the solid to form...

An adverse food reaction is an adverse response by the body to food or a specific type of food. The most common adverse reaction is a food allergy, which...

Reaction was a British independent record label, run by music executive Robert Stigwood in 1966 and 1967. Although Reaction released only three albums...

In organic chemistry, the Mallory reaction is a photochemical-cyclization–elimination reaction of diaryl-ethylene structures to form phenanthrenes and...

The Achmatowicz reaction, also known as the Achmatowicz rearrangement or the Achmatowicz oxidation, is an organic synthesis in which a furan is converted...

with far lower mass and volume requirements. Characteristics of fusion reactions can make possible the use of non-fissile depleted uranium as the weapon's...

The Light Reaction Regiment (LRR) is the special operations unit of the Philippine Army (PA), under the operational control of the Armed Forces of the...

The Passerini reaction is a chemical reaction involving an isocyanide, an aldehyde (or ketone), and a carboxylic acid to form a α-acyloxy amide. This...

The Pfitzinger reaction (also known as the Pfitzinger-Borsche reaction) is the chemical reaction of isatin with base and a carbonyl compound to yield...

Psychotic Reaction is the only studio album by the American garage rock band Count Five, released in October 1966, through Double Shot Records. It features...

reaction is a chemical reaction in which a β-arylethylamine undergoes condensation with an aldehyde or ketone followed by ring closure. The reaction was...

Blaise reaction is an organic reaction that forms a β-ketoester from the reaction of zinc metal with an α-bromoester and a nitrile.[1][2][3] The reaction was...

for a zero order reaction depends on the initial concentration and the rate constant. In first order reactions, the rate of reaction will be proportional...

metallo-ene reaction is a chemical reaction employed within organic synthesis. Mechanistically similar to the classic ene reaction, the metallo-ene reaction involves...

Armed Reaction II (Chinese: 陀槍師姐 II; Jyutping: to4 coeng1 si1 ze2 II) is a 2000 Hong Kong modern cop drama produced by TVB. The drama stars Bobby Au-yeung...

For exergonic and endergonic reactions, see the separate articles: Endergonic reaction Exergonic reaction Exergonic process Endergonic Exothermic process...

Photosensitive drug reaction secondary to medications may cause phototoxic, photoallergic, and lichenoid reactions, and photodistributed telangiectasias...

The Cope reaction or Cope elimination, developed by Arthur C. Cope, is the elimination reaction of an N-oxide to an alkene and a hydroxylamine. Typically...

Hydrogen evolution reaction (HER) is a chemical reaction that yields H2. The conversion of protons to H2 requires reducing equivalents and usually a catalyst...

The Doyle–Kirmse reaction is an organic reaction in which a metal carbene reacts with an allyl compound with transposition of the alkene and transfer...

Schikorr reaction formally describes the conversion of the iron(II) hydroxide (Fe(OH)2) into iron(II,III) oxide (Fe3O4). This transformation reaction was first...

a pericyclic reaction is the type of organic reaction wherein the transition state of the molecule has a cyclic geometry, the reaction progresses in...

cross-coupling reaction is a reaction where two different fragments are joined. Cross-couplings are a subset of the more general coupling reactions. Often cross-coupling...

In organic chemistry, an electrocyclic reaction is a type of pericyclic, rearrangement reaction where the net result is one pi bond being converted into...

Selected reaction monitoring (SRM), also called multiple reaction monitoring (MRM), is a method used in tandem mass spectrometry in which an ion of a particular...

Barbier reaction is an organometallic reaction between an alkyl halide (chloride, bromide, iodide), a carbonyl group and a metal. The reaction can be performed...

The Special Reaction Unit is a part of the Presidential Security Command, which serves as its main counter-terrorist unit among the other nine organic...

The Abelin reaction is a qualitative reaction for demonstrating the presence of arsphenamine and neoarsphenamine in blood and urine. It is named for Isaak...

Doebner–Miller reaction is the organic reaction of an aniline with α,β-unsaturated carbonyl compounds to form quinolines. This reaction is also known as...

The Sullivan reaction is a chemical test used for detecting the presence of cysteine or cystine in proteins. A red colour appears when a protein with cysteine...

Idiosyncratic drug reactions, also known as type B reactions, are drug reactions that occur rarely and unpredictably amongst the population. This is not...

Reaction Dynamics is a Canadian aerospace company headquartered in Longueuil, Quebec, specializing in hybrid rocket propulsion and small satellite launch...

effects of light. Generally, this term is used to describe a chemical reaction caused by absorption of ultraviolet (wavelength from 100 to 400 nm), visible...

exploit this reaction: 2 •NO → O2 + N2 When exposed to oxygen, nitric oxide converts into nitrogen dioxide: 2 •NO + O2 → 2 •NO2 This reaction is thought...

Chemical reaction models transform physical knowledge into a mathematical formulation that can be utilized in computational simulation of practical problems...

evolution reaction is a chemical reaction in which one of the end products is a gas such as oxygen or carbon dioxide. Gas evolution reactions may be carried...

by husband-and-wife duo Ethan and Hila Klein. Their content consists of reaction videos and sketch comedy in which they satirize internet culture. The H3...

characterized primarily by psychophysiological expressions, biological reactions, and mental states. A similar multi-componential description of emotion...

The Briggs–Rauscher oscillating reaction is one of a small number of known oscillating chemical reactions. It is especially well suited for demonstration...

The Whiting reaction is an organic reaction converting a propargyl diol into a diene using lithium aluminium hydride. This organic reduction has been...

coupling reaction or the aldehyde-alkyne-amine reaction), coined by Prof. Chao-Jun Li of McGill University, is a type of multicomponent reaction involving...

flash". Chemical reactions involving thermal runaway are also called thermal explosions in chemical engineering, or runaway reactions in organic chemistry...

An aldol condensation is a condensation reaction in organic chemistry in which two carbonyl moieties (of aldehydes or ketones) react to form a β-hydroxyaldehyde...

The Allied Reaction Force (ARF) is a rapidly-deployable North Atlantic Treaty Organization (NATO) intervention force of division strength within the framework...

integral Hill reaction Integrated fluorometer Light-dependent reaction Organic reaction Photobiology Photoinhibition Photosynthetic reaction center Photosynthetically...

The Schotten–Baumann reaction is a method to synthesize amides from amines and acid chlorides: Schotten–Baumann reaction conditions can also refer to...

In organophosphorus chemistry, the Kabachnik–Fields reaction is a three-component organic reaction forming α-aminomethylphosphonates from an amine, a carbonyl...

The pagan reaction in Poland (Polish: Reakcja pogańska w Polsce) was a series of events in the Kingdom of Poland in the 1030s that culminated in a popular...

Aza-Wittig reaction or is a chemical reaction of a carbonyl group with an aza-ylide, also known as an iminophosphorane (R3P=NR'). Aza-Wittig reactions are most...

flemmen 'to look spiteful'), also called the flehmen position, flehmen reaction, flehmen grimace, flehming, or flehmening, is a behavior in which an animal...

Injection site reactions (ISRs) are reactions that occur at the site of injection of a drug. They may be mild or severe and may or may not require medical...

The Prilezhaev reaction, also known as the Prileschajew reaction or Prilezhaev epoxidation, is the chemical reaction of an alkene with a peroxy acid to...

The Heck–Matsuda (HM) reaction is an organic reaction and a type of palladium catalysed arylation of olefins that uses arenediazonium salts as an alternative...

International reactions to the United Kingdom European Union membership referendum of 2016 are the reactions to the decision to leave the European Union...

cycle, or TCA cycle (tricarboxylic acid cycle)—is a series of biochemical reactions that release the energy stored in nutrients through acetyl-CoA oxidation...

chemical reaction that results from the ignition of a mixture of carbon disulfide and nitrous oxide. When ignited in a cylindrical tube, the reaction produces...

of the startle response is a startle reflex reaction. The startle reflex is a brainstem reflectory reaction (reflex) that serves to protect vulnerable...

Photodisintegration (also called phototransmutation, or a photonuclear reaction) is a nuclear process in which an atomic nucleus absorbs a high-energy...

A photosynthetic reaction center is a complex of several proteins, biological pigments, and other co-factors that together execute the primary energy conversion...

view and policies meant to restore a status quo ante. As an ideology, reactionism is a tradition in right-wing politics; the reactionary stance opposes...

Within the field of geology, Bowen's reaction series is the work of the Canadian petrologist Norman L. Bowen, who summarized, based on experiments and...

to the extent of a single molecule. In intramolecular organic reactions, two reaction sites are contained within a single molecule. This configuration...

also known as hyperarousal or acute stress response, is a physiological reaction that occurs in response to a perceived harmful event, attack, or threat...

The Gewald reaction (or the Gewald aminothiophene synthesis) is an organic reaction involving the condensation of a ketone (or aldehyde when R2 = H) with...

Avoidance reaction is a term used in the description of the movement of paramecium. This helps the cell avoid obstacles and causes other objects to bounce...

metal, and both are in the presence of an electrolyte. A similar galvanic reaction is exploited in single-use battery cells to generate a useful electrical...

The Minisci reaction (Italian: [miˈniʃʃi]) is a named reaction in organic chemistry. It is a nucleophilic radical substitution to an electron deficient...

The Stetter reaction is a reaction used in organic chemistry to form carbon-carbon bonds through a 1,4-addition reaction utilizing a nucleophilic catalyst...

explosives, and organic redox reactions involve atom-transfer reactions. Electron acceptors participate in electron-transfer reactions. In this context, the oxidizing...

Modified aldol tandem reaction is a sequential chemical transformation that combines aldol reaction with other chemical reactions that generate enolates...

The Corey–Fuchs reaction, also known as the Ramirez–Corey–Fuchs reaction, is a series of chemical reactions designed to transform an aldehyde into an...

the Baylis–Hillman, Morita–Baylis–Hillman, or MBH reaction is a carbon–carbon bond-forming reaction between an activated alkene and a carbon electrophile...

standard enthalpy of reaction (denoted Δ H reaction ⊖ {\displaystyle \Delta H_{\text{reaction}}^{\ominus }} ) for a chemical reaction is the difference between...

the carbohydrate molecule galactose-alpha-1,3-galactose ("alpha-gal"). Reactions can be life-threatening, and typically either begin rapidly after exposure...

an empirical differential mathematical expression for the reaction rate of a given reaction in terms of concentrations of chemical species and constant...

The Michaelis–Arbuzov reaction (also called the Arbuzov reaction) is the chemical reaction of a trivalent phosphorus ester with an alkyl halide to form...

antigen-antibody reaction, is a specific chemical interaction between antibodies produced by B cells of the white blood cells and antigens during immune reaction. The...

Reaction Design is a San Diego–based developer of combustion simulation software used by engineers to design cleaner burning and fuel-efficient combustors...

The Ritter reaction (sometimes called the Ritter amidation) is a chemical reaction that transforms a nitrile into an N-alkyl amide using various electrophilic...

The Hopkins-Cole reaction, also known as the glyoxylic acid reaction, is a chemical test used for detecting the presence of tryptophan in proteins. A...

touchdown polymerase chain reaction or touchdown style polymerase chain reaction is a method of polymerase chain reaction by which primers avoid amplifying...

"gluten free" definition. Unilever reports that no cases of gluten-related reactions have been reported for Marmite. Nevertheless, Unilever has chosen not...

Povarov reaction is an organic reaction described as a formal cycloaddition between an aromatic imine and an alkene. The imine in this organic reaction is...

On 2 December 1942, the first human-made self-sustaining nuclear chain reaction was initiated in CP-1 during an experiment led by Enrico Fermi. The secret...

type of transfusion reaction is less severe when compared to acute haemolytic transfusion reaction. Febrile nonhemolytic reactions are, along with allergic...

The Pomeranz–Fritsch reaction, also named Pomeranz–Fritsch cyclization, is a named reaction in organic chemistry. It is named after Paul Fritsch (1859–1913)...

A harpoon reaction or harpoon mechanism is a type of chemical reaction that involves two neutral reactants undergoing an electron transfer over a relatively...

of ammonia. It converts atmospheric nitrogen (N2) to ammonia (NH3) by a reaction with hydrogen (H2) using finely divided iron metal as a catalyst: N 2 +...

Zinin reaction or Zinin reduction involves reduction of nitro aromatic compounds to the amines using sodium sulfide. It is used to convert nitrobenzenes...

A single-displacement reaction, also known as single replacement reaction or exchange reaction, is a type of chemical reaction in which one element or...

In organic chemistry, a homologation reaction, also known as homologization, is any chemical reaction that converts the reactant into the next member of...

diffusion-limited) reactions are reactions in which the reaction rate is equal to the rate of transport of the reactants through the reaction medium (usually...

The Kolbe–Schmitt reaction or Kolbe process (named after Hermann Kolbe and Rudolf Schmitt) is a carboxylation chemical reaction that proceeds by treating...

chemical reaction in which a molecule of water breaks one or more chemical bonds. The term is used broadly for substitution and elimination reactions in which...

emulate the way nature constructs complex molecules, using efficient reactions to join together simple, non-toxic building blocks. Many perspectives...

In organic chemistry, the Trofimov reaction is a reaction used to synthesize 2,3-disubstituted pyrroles from ketoximes and acetylene using the superbase...

chemical reactions to obtain one or more products. This occurs by physical and chemical manipulations, usually involving one or more reactions. In modern...

The Buchner–Curtius–Schlotterbeck reaction is the reaction of aldehydes or ketones with aliphatic diazoalkanes to form homologated ketones. It was first...

reaction is an organic reaction between an aldehyde and N-hydroxybenzenesulfonamide in presence of base forming a hydroxamic acid. The other reaction...

The Sonogashira reaction is a cross-coupling reaction used in organic synthesis to form carbon–carbon bonds. It employs a palladium catalyst as well as...

The Tsuji–Trost reaction (also called the Trost allylic alkylation or allylic alkylation) is a palladium-catalysed substitution reaction involving a substrate...

The ligase chain reaction (LCR) is a method of DNA amplification. The ligase chain reaction (LCR) is an amplification process that differs from polymerase...

Baudisch reaction is a process for the synthesis of nitrosophenols using metal ions. Although the products are of limited value, the reaction is of historical...

In organic chemistry, the Bruylants reaction (sometimes misspelled Bruylant) is a substitution reaction in which a Grignard reagent replaces a nitrile...

Fixed drug reactions are common and so named because they recur at the same site with each exposure to a particular medication. Medications inducing fixed...

A non-enzymatic reaction refers to a chemical reaction that occurs without the need for participation (or catalysis) of an enzyme. While enzymes act as...

phenomenon (also known as the Shwartzman reaction and the Sanarelli-Shwartzman reaction) is a rare hyperimmune reaction of the body to toxins associated with...

The Reimer–Tiemann reaction is a chemical reaction used for the ortho-formylation of phenols. with the simplest example being the conversion of phenol...

Hypersensitivity (also called hypersensitivity reaction) is an immune response characterized by mechanisms that cause significant tissue damage or physiological...

allergic transfusion reaction is when a blood transfusion results in allergic reaction. It is among the most common transfusion reactions to occur. Reported...

In organic chemistry, the Roskamp reaction is a name reaction describing the reaction between α-diazoesters (such as ethyl diazoacetate) and aldehydes...

processing speed or reaction time on cognitive tasks to infer the content, duration, and temporal sequencing of mental operations. Reaction time (RT; also...

Thermodynamic reaction control or kinetic reaction control in a chemical reaction can decide the composition in a reaction product mixture when competing...

Armed Reaction IV (Chinese: 陀槍師姐 IV; Jyutping: to4 coeng1 si1 ze2 IV) is a Hong Kong modern cop drama released overseas in August 2003. The drama stars...

Paternò–Büchi reaction, named after Emanuele Paternò and George Büchi, who established its basic utility and form, is a photochemical reaction, specifically...

in the United States for use in aircraft. It was designed and built by Reaction Motors Inc., and used ethyl alcohol and liquid oxygen as propellants to...

when the forward reaction proceeds at the same rate as the reverse reaction. The reaction rates of the forward and backward reactions are generally not...

The Skraup reaction, or Skraup synthesis, is a chemical reaction used to synthesize quinolines. It is named after the Czech chemist Zdenko Hans Skraup...

The Fifth Reaction (Persian: واکنش پنجم) is an Iranian film which was made in 2003, written by Mehrnoosh Khorsand and directed by Tahmineh Milani. The...

Life-threatening hypersensitivity reactions occurring during surgery and anesthesia is around 1 in 10,000 procedures. More recent studies have reported...

A hypotensive transfusion reaction (HTR) is a rare condition that presents with low blood pressure associated with administration of blood products. The...

The Hick–Hyman law assesses cognitive information capacity in choice reaction experiments. The amount of time taken to process a certain amount of bits...

next 11 years which developed his world view of a New Age conspiracy. Reactions to his endorsement of an antisemitic fabrication, The Protocols of the...

Serbian claims that Kosovo is part of its sovereign territory, its initial reactions included recalling ambassadors from countries that recognised Kosovo for...

The blue bottle experiment is a color-changing redox chemical reaction. An aqueous solution containing glucose, sodium hydroxide, methylene blue is prepared...

Chain Reaction, also known as The Strangeurs, was an American rock band from Yonkers, New York. They had two singles and were most notable for having lead...

Silicothermic reactions are thermic chemical reactions using silicon as the reducing agent at high temperature (800-1400°C). They were initially commercialized...

The Shapiro reaction or tosylhydrazone decomposition is an organic reaction in which a ketone or aldehyde is converted to an alkene through an intermediate...

will occur only if the overall energy change for the reaction is favorable. In general, the reaction is exothermic, but, e.g., the formation of mercuric...

organic chemistry, the hexadehydro-Diels–Alder (HDDA) reaction is an organic chemical reaction between a diyne (2 alkyne functional groups arranged in...

The Reissert reaction is a series of chemical reactions that transforms quinoline to quinaldic acid, with concomitant reduction of an acylant to an aldehyde...

A halogen addition reaction is a simple organic reaction where a halogen molecule is added to the carbon–carbon double bond of an alkene functional group...

The Bamford–Stevens reaction is a chemical reaction whereby treatment of tosylhydrazones with strong base gives alkenes. It is named for the British chemist...

The Bingel reaction in fullerene chemistry is a fullerene cyclopropanation reaction to a methanofullerene first discovered by C. Bingel in 1993 with the...

The negative therapeutic reaction in psychoanalysis is the paradoxical phenomenon whereby a plausible interpretation produces, rather than improvement...

The ketimine Mannich reaction is an asymmetric synthetic technique using differences in starting material to push a Mannich reaction to create an enantiomeric...

The Balz–Schiemann reaction (also called the Schiemann reaction) is a chemical reaction in which an aryl diazonium salt is transformed to an aryl fluoride...

The Zincke–Suhl reaction is a special case of a Friedel-Crafts alkylation and was first described by Theodor Zincke and Suhl in 1906. Unlike the traditional...

light-independent reactions, bio synthetic phase, dark reactions, or photosynthetic carbon reduction (PCR) cycle of photosynthesis is a series of chemical reactions that...

chemistry, transition state theory (TST) explains the reaction rates of elementary chemical reactions. The theory assumes a special type of chemical equilibrium...

Direction Reaction Creation is an anthology issued in 1997 by the British band the Jam. It includes 117 tracks over 5 discs. Discs 1 to 4 comprise all...

The Allied Rapid Reaction Corps (ARRC) is a rapid reaction force maintained by NATO. It is capable of deploying a High Readiness Force (Land) Headquarters...

Carbonyl α-substitution reactions occur at the position next to the carbonyl group, the α-position, and involves the substitution of an α-hydrogen by...

The water–gas shift reaction (WGSR) describes the reaction of carbon monoxide and water vapor to form carbon dioxide and hydrogen: CO + H2O ⇌ CO2 + H2...

expatriate communities of Indians and Pakistanis, conveyed a more moderate reaction. In response, the Indian government criticised the GCC for what it regarded...

of benzaldehyde and aniline. In the Pictet–Hubert reaction (1899) the compound is formed in a reaction of the 2-aminobiphenyl – formaldehyde adduct (an...

In chemistry, a chemical transport reaction describes a process for purification and crystallization of non-volatile solids. The process is also responsible...

Buchwald–Hartwig amination is a chemical reaction for the synthesis of carbon–nitrogen bonds via the palladium-catalyzed coupling reactions of amines with aryl halides...

Agostini's reaction is a simple medical test for the presence of glucose in urine. The method consists of adding the urine to a prepared solution of auric...

"Positive Reaction" is a song written and produced by Stock Aitken Waterman for Mandy Smith's debut studio album Mandy (1988). The song was released in...

The Barton–Kellogg reaction is a coupling reaction between a diazo compound and a thioketone, giving an alkene by way of an episulfide intermediate.[1][2][3]...

for discussion to help reach a consensus.› The Dakin–West reaction is a chemical reaction that transforms an amino-acid into a keto-amide using an acid...

The Bischler–Napieralski reaction is an intramolecular electrophilic aromatic substitution reaction that allows for the cyclization of β-arylethylamides...

Armed Reaction III (Chinese: 陀槍師姐 III; Jyutping: to4 coeng1 si1 ze2 III) is a 2001 Hong Kong modern cop drama produced by TVB. The drama stars Bobby Au-yeung...

chemical equation is the symbolic representation (notation) of a chemical reaction in the form of symbols and chemical formulas. The reactant entities are...

In organic chemistry, the Graham reaction is an oxidation reaction that converts an amidine into a diazirine using a hypohalite reagent. The halide of...

Chain Reaction Cycles is an English online retailer of sports gear and equipment. It is the online brand of the Frasers Group, having been bought after...

The Maritime Reaction Squadron (MRS) is a specialised marine-like unit of the South African Navy that provides a combat ready amphibious, diving and small...

The Reed reaction is a chemical reaction that utilizes light to oxidize hydrocarbons to alkylsulfonyl chlorides. This reaction is employed in modifying...

associated with life. The chemistry of the cell also depends upon the reactions of small molecules and ions. These can be inorganic (for example, water...

The McMurry reaction is an organic reaction in which two ketone or aldehyde groups are coupled to form an alkene using a titanium chloride compound such...

obtained from filtrates of sterilized, concentrated cultures. The tuberculin reaction was first described by Robert Koch in 1890. The test was first developed...

In organic chemistry, the Conia-ene reaction is an intramolecular cyclization reaction between an enolizable carbonyl such as an ester or ketone and an...

The alkali–carbonate reaction is an alteration process first suspected in the 1950s in Canada for the degradation of concrete containing dolomite aggregates...

The Hammick reaction, named after Dalziel Hammick, is a chemical reaction in which the thermal decarboxylation of α-picolinic (or related) acids in the...

require quick reaction times for the players to shoot enemies, and fighting games such as Street Fighter and Mortal Kombat require quick reaction times to...

The Reaction Engines Scimitar is a derivative of the SABRE engine technology, but intended for jet airliners (the Reaction Engines LAPCAT A2 concept),...

an electric current is generated from spontaneous oxidation–reduction reactions. An example of a galvanic cell consists of two different metals, each...

mental image brings about a seemingly "reflexive" or automatic muscular reaction, often of minuscule degree, and potentially outside of the awareness of...

persecutory beliefs concerning mild, moderate, and severe threats. A paranoid reaction may be caused from a decline in brain circulation as a result of high blood...

turning brown due to the chemical reactions that take place within. The process of browning is one of the chemical reactions that take place in food chemistry...

chemical reaction or process as a single energetic pathway as the reactants are transformed into products. This pathway runs along the reaction coordinate...

The Reaction Motors LR99 engine was the first large, throttleable, restartable liquid-propellant rocket engine. Development began in the 1950s by the Reaction...

The Rauhut–Currier reaction, also called the vinylogous Morita–Baylis–Hillman reaction, is an organic reaction describing (in its original scope) the...

molecule. Most enzymes are proteins, and most such processes are chemical reactions. Within the enzyme, generally catalysis occurs at a localized site, called...

Chain Reaction is a peace monument and public art sculpture composed of a metal framework of stainless steel and fiberglass surrounded by concrete, depicting...

quantities of reactants and products before, during and after chemical reactions. Stoichiometry is based on the law of conservation of mass; the total...

of Biochemical Pathways - Reaction Kinetics) is a web-accessible database storing information about biochemical reactions and their kinetic properties...

Elbs reaction is an organic reaction describing the pyrolysis of an ortho methyl substituted benzophenone to a condensed polyaromatic. The reaction is named...

organic reaction that forms an ester from a ketone or a lactone from a cyclic ketone, using peroxyacids or peroxides as the oxidant. The reaction is named...

Old Nassau reaction or Halloween reaction is a chemical clock reaction in which a clear solution turns orange and then black. This reaction was discovered...

In organic chemistry, a rearrangement reaction is a broad class of organic reactions "that involves a change of connectivity". Usually the term rearrangement...

Abraham–Lorentz force (also known as the Lorentz–Abraham force) is the reaction force on an accelerating charged particle caused by the particle emitting...

synthesis is an organic reaction in which an aryl halide reacts with cuprous cyanide to yield an aryl nitrile. The reaction was named after Karl Wilhelm...

The transposed Paternò−Büchi reaction involves a ππ* excited state of an alkene reacting with a ground state carbonyl functionality. This is a reversal...

The alkyne zipper reaction is an organic reaction of unsaturated hydrocarbons. In the presence of an extremely strong base, a non-terminal alkyne isomerizes...

The Bohn–Schmidt reaction, a named reaction in chemistry, introduces a hydroxy group at an anthraquinone system. The anthraquinone must already have at...

phenomena to be considered are mass rates and reaction.[citation needed] Homogeneous reactions are chemical reactions in which the reactants and products are...

The Einhorn–Brunner reaction is the designation for the chemical reaction of imides with alkyl hydrazines to form an isomeric mixture of 1,2,4-triazoles...

polymerase chain reaction (digital PCR, DigitalPCR, dPCR, or dePCR) is a biotechnological refinement of conventional polymerase chain reaction methods that...

The Barton–Zard reaction is a route to pyrrole derivatives via the reaction of a nitroalkene with an α-isocyanide under basic conditions. It is named...

overall reaction, the reaction will favor the side opposing the addition of the species. Likewise, the subtraction of a species would cause the reaction to...

The Kolbe electrolysis or Kolbe reaction is an organic reaction named after Hermann Kolbe. The Kolbe reaction is formally a decarboxylative dimerisation...

The reaction to the 1963 South Vietnamese coup that saw the arrest and assassination of Ngô Đình Diệm was mixed. The coup was immediately denounced by...

In organic chemistry, the Soai reaction is the alkylation of pyrimidine-5-carbaldehyde with diisopropylzinc. The reaction is autocatalytic and leads to...

requires no previous exposure to a stimulant before crafting an immune reaction. Contact urticaria List of cutaneous conditions Rapini, Ronald P.; Bolognia...

parasympathetic division functions with actions that do not require immediate reaction. The sympathetic system is often considered the "fight or flight" system...

The Tscherniak-Einhorn reaction is an organic chemistry name reaction initiated in 1901 by Joseph Tscherniak. It involves the condensation of N- hydroxymethylphthalimide...

Catalyzed asymmetric dearomatization reactions (CADA reactions) are a category of asymmetric dearomatization reactions that catalytically transform aromatic...

In organic chemistry, the Corey–Link reaction is a name reaction that converts a 1,1,1-trichloro-2-keto structure into a 2-aminocarboxylic acid (an alpha...

In organic chemistry, ozonolysis is an organic reaction where the unsaturated bonds are cleaved with ozone (O3). Multiple carbon–carbon bond are replaced...

Application site reactions are reactions to medical treatments which occur at the site of application. An example is skin reactions to transdermal patches...

The Wurtz–Fittig reaction is the chemical reaction of an aryl halide, alkyl halides, and sodium metal to give substituted aromatic compounds. Following...

mixture of acetic acid and hydrogen iodide in a test tube. The ensuing reaction results in the cleavage of the ether or the ester into an alkyl iodide...

This response is called the acute-phase reaction (also called acute-phase response). The acute-phase reaction characteristically involves fever, acceleration...

a tissue or feature is said to be amyloid if it has a positive amyloid reaction when subjected to a crude chemical test using iodine as an ingredient of...

reaction that couples two alkenes to give a symmetrical hydrocarbon. The reaction is often implemented electrochemically; in that case the reaction is...

The Asinger reaction (sometimes referred to as the Asinger-4 component reaction or A-4CR for short) is a multicomponent reaction for the synthesis of 3-thiazolines...

In organic chemistry, the Ferrario–Ackermann reaction or simply the Ferrario reaction is a name reaction that allow for the generation of phenoxathiin...

organisms that includes microorganisms, fungi, plants and animals. These reactions often act to detoxify drugs (although in some cases the intermediates...

The inverse electron demand Diels–Alder reaction, or DAINV or IEDDA is an organic chemical reaction, in which two new chemical bonds and a six-membered...

and carbon dioxide. Aldehydes participate in many reactions. Some industrially relevant reactions: condensations, e.g., to prepare plasticizers and polyols...

sounds do cause a misophonic reaction, it is substantially weaker than if another person produced the sound. Misophonic reactions can be triggered by various...

Koenigs–Knorr reaction is the substitution reaction of a glycosyl halide with an alcohol to give a glycoside. It is one of the oldest glycosylation reactions. It...

The Chen-Kao reaction (named after Ko Kuei Chen and Chung-Hsi Kao, Madison, Wisconsin 1926) is a chemical method for determining the presence of pseudoephedrine...

elementary (single-step) reaction and is equal to the sum of stoichiometric coefficients of reactants in the elementary reaction with effective collision...

force required to accelerate something will evoke an equal but opposite reactional force, which means the forward momentum gained by the projectile and exhaust...

notably for the production of fertilizers. Because the underlying chemical reaction (water splitting) does not produce greenhouse gases, the emissions footprint...