The reaction between potassium hydroxide (KOH) and nitric acid (HNO₃) is a classic acid-base neutralization reaction. The products formed are:

* Potassium nitrate (KNO₃): This is a salt formed from the cation of the base (K⁺) and the anion of the acid (NO₃⁻).

* Water (H₂O): This is formed from the hydrogen ions (H⁺) from the acid and the hydroxide ions (OH⁻) from the base.

The balanced chemical equation for the reaction is:

KOH + HNO₃ → KNO₃ + H₂O