The reaction between sulfuric acid HSO and potassium hydroxide KOH is an acid-base reaction, also known as a neutralization reaction. In this reaction, the products formed are potassium sulfate KSO and water HO . The balanced chemical equation for the reaction is:2 KOH aq + HSO aq KSO aq + 2 HO l This reaction is exothermic, as most neutralization reactions release heat. The energy is released due to the formation of new bonds between the ions in the products, which is more stable than the reactants.