Give reason for the following.
Hydronium ions are always in the form H3O+
When an acids dissolve in water. The H+ ion from acid always goes to the nearest water molecule to form hydronium ion.
For example : When Hydrochloric acid(HCl) is a strong acid. When it is dissolved in water, HCl is ionized completely in aqueous solution. Hydrochloric acid will donates its proton H+ to water molecule to form a hydronium cation H3O+and chloride anions Cl- .