## General, Organic, and Biological Chemistry: Structures of Life (5th Edition)

$NH{_4}^+ + H_2O \rightleftharpoons NH_3 + H_3O^+$
1. Identify the reactants. Ammonium ion and water: $NH{_4}^+$ and $H_2O$ 2. Find the products. - As the exercise says, $NH{_4}^+$ will donate an $H^+$ to $H_2O$. Thus, we just need to find the conjugate base for the ammonium ion and the conjugate acid for water. $NH{_4}^+ \longrightarrow NH_3$ $H_2O \longrightarrow H_3O^+$ 3. Write the equation. $NH{_4}^+ + H_2O \rightleftharpoons NH_3 + H_3O^+$