The reaction between nitrogen gas (N₂) and hydrogen gas (H₂) to produce ammonia (NH₃) can be represented by the balanced chemical equation:
\[ N_2 + 3H_2 \rightarrow 2NH_3 \]
From the balanced equation, we see that:
- 1 mole of nitrogen (N₂) reacts with 3 moles of hydrogen (H₂) to produce 2 moles of ammonia (NH₃).
Given that you start with 1 mole of nitrogen gas and 3 moles of hydrogen gas, you will produce 2 moles of ammonia (NH₃).
So the correct response is:
2 moles.