Enter a chemical equation for HClO4(aq) showing how it is an acid or a base according to the Arrhenius definition. Consider that strong acids and bases dissociate completely.

HClO₄(l)  → H⁺ (aq) + ClO₄⁻ (aq)

Explanation:

Arrhenius definition states that a compound is an acid when, in aqueous solution it can releases protons.

Therefore a compound is a base when, in aqueous solutions it can releases hydroxides anions.

For example:

Nitric acid → HNO₃

It is an Arrhenius acid, because it can release a H⁺, according to this equation:  HNO₃ →  H⁺  +  NO₃⁻

HClO₄ → Perchloric acid

HClO₄(l)  → H⁺ (aq) + ClO₄⁻ (aq)

Perchloric acid releases a proton when it is immersed in an aqueous solution. And it also produces perchlorate anion.