The decomposition of ammonium nitrate (NH₄NO₃) can proceed in two different ways, depending on the conditions:

1. Thermal Decomposition (at high temperatures):

This results in the formation of nitrogen gas (N₂), oxygen gas (O₂), and water (H₂O).

Balanced Equation:

2 NH₄NO₃(s) → 2 N₂(g) + O₂(g) + 4 H₂O(g)

2. Explosive Decomposition (under detonation conditions):

This is a highly exothermic reaction that produces a large volume of gas, leading to an explosion. The main products are nitrogen gas (N₂), water (H₂O), and nitrous oxide (N₂O).

Balanced Equation:

NH₄NO₃(s) → N₂O(g) + 2 H₂O(g)

Note: The explosive decomposition of ammonium nitrate is a dangerous process and should never be attempted without proper training and safety precautions.