write a balanced chemical equation based on the following description: nitrogen gas reacts with hydrogen gas…

Explanation:

Step1: Write the un - balanced equation

$N_2(g)+H_2(g)\rightarrow NH_3(g)$

Step2: Balance the nitrogen atoms

There are 2 nitrogen atoms on the left - hand side. To balance nitrogen, we put a 2 in front of $NH_3$: $N_2(g)+H_2(g)\rightarrow 2NH_3(g)$

Step3: Balance the hydrogen atoms

Now, there are 6 hydrogen atoms on the right - hand side. To balance hydrogen, we put a 3 in front of $H_2$: $N_2(g)+3H_2(g)\rightarrow 2NH_3(g)$

Answer:

$N_2(g)+3H_2(g)\rightarrow 2NH_3(g)$