The decomposition of sodium nitrate (NaNO₃) produces sodium nitrite (NaNO₂) and oxygen gas (O₂). Here's the balanced chemical equation:

2 NaNO₃ → 2 NaNO₂ + O₂

Explanation:

* Reactant: Sodium nitrate (NaNO₃)

* Products: Sodium nitrite (NaNO₂) and oxygen gas (O₂)

* Balancing: Notice that the equation is balanced. There are 2 sodium atoms, 2 nitrogen atoms, and 6 oxygen atoms on both sides of the equation.

Important Note: This decomposition reaction requires heat to occur.