Question

1. hydrogen gas reacts with nitrogen gas to form ammonia.

reactants:
products:
balanced equation:

Explanation:

Step1: Identify reactants

Reactants are the starting substances in a chemical reaction, which are hydrogen gas and nitrogen gas. Their chemical formulas are $\text{H}_2$ and $\text{N}_2$ respectively.

Step2: Identify products

The product is the substance formed, which is ammonia. Its chemical formula is $\text{NH}_3$.

Step3: Balance the chemical equation

First, write the unbalanced equation: $\text{N}_2 + \text{H}_2
ightarrow \text{NH}_3$
Balance nitrogen: There are 2 N on the left, so add a coefficient of 2 to $\text{NH}_3$: $\text{N}_2 + \text{H}_2
ightarrow 2\text{NH}_3$
Balance hydrogen: Now there are 6 H on the right, so add a coefficient of 3 to $\text{H}_2$: $\text{N}_2 + 3\text{H}_2
ightarrow 2\text{NH}_3$

Answer:

Reactants: Nitrogen gas ($\text{N}_2$), Hydrogen gas ($\text{H}_2$)
Products: Ammonia ($\text{NH}_3$)
Balanced equation: $\text{N}_2 + 3\text{H}_2
ightarrow 2\text{NH}_3$