HNO3 is an acid, because in aqueous solutions it can dissociate, releasing hydrogen ions. All acids are proton donors. The chemical equation for the dissociation reaction of HNO3 is HNO3 + H2O-> H3O+& +& NO3- whereas the base dissociates to give hydroxide ions in aqueous solutions. Bases are proton acceptors. The base combines with acid to form salt. The salt contains metal ion& and acid residual
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