Tags: Chemical Compound, Chemical Substance.
The hydronium cation also known as hydroxonium is the positively charged polyatomic ion with the chemical formula H3O+. Hydronium a type of oxonium ion is formed by the protonation of water (H2O). This cation is often used to represent the nature of the proton in aqueous solution where the proton is highly solvated (bound to a solvent).
