In chemistry, hydronium (hydroxonium in traditional British English) is the cation [H3O]+, also written as H3O+, the type of oxonium ion produced by protonation...

Protonated ozone Names IUPAC name Hydroxy(oxo)oxidanium Systematic IUPAC name Hydrotrioxygen(1+) Identifiers CAS Number 74241-49-9 3D model (JSmol) Interactive...