write a net ionic equation for the reaction that occurs when aqueous solutions of perchloric acid and potassium hydroxide are combined.

H⁺(aq) + OH⁻(aq) ⇒ H₂O(l)

Explanation:

Let's consider the molecular equation that occurs when aqueous solutions of perchloric acid and potassium hydroxide are combined. This is a neutralization reaction.

HClO₄(aq) + KOH(aq) ⇒ KClO₄(aq) + H₂O(l)

The complete ionic equation includes all the ions and molecular species.

H⁺(aq) + ClO₄⁻(aq) + K⁺(aq) + OH⁻(aq) ⇒ K⁺(aq) + ClO₄⁻(aq) + H₂O(l)

The net ionic equation includes only the ions that participate in the reaction and the molecular species.

H⁺(aq) + OH⁻(aq) ⇒ H₂O(l)