1. The problem is to balance the chemical equation: $$\text{Na}_3\text{PO}_4 + 3 \text{KOH} \rightarrow 3 \text{NaOH} + \text{K}_3\text{PO}_4$$ 2. The goal is to ensure the number of atoms of each element is the same on both sides of the equation. 3. Check each element: - Sodium (Na): Left has 3 (from Na3PO4), right has 3 (from 3 NaOH). - Phosphorus (P): Left has 1 (from Na3PO4), right has 1 (from K3PO4). - Oxygen (O): Left has 4 (from Na3PO4) + 3 (from 3 KOH) = 7, right has 3 (from 3 NaOH) + 4 (from K3PO4) = 7. - Potassium (K): Left has 3 (from 3 KOH), right has 3 (from K3PO4). 4. Since all elements are balanced, the equation is balanced as given. Final balanced equation: $$\text{Na}_3\text{PO}_4 + 3 \text{KOH} \rightarrow 3 \text{NaOH} + \text{K}_3\text{PO}_4$$