Question

this state of matter is definite in shape and volume.
solid
liquid
gas
determine the reactants of the equation below
n₂ + h₂ → nh₃

Explanation:

Step1: Recall states of matter properties

Solids have definite shape and volume, liquids have definite volume but take the shape of the container, and gases have neither definite shape nor volume. So the answer to the first - part is solid.

Step2: Balance the chemical equation

We start with the un - balanced equation $N_2 + H_2
ightarrow NH_3$. For nitrogen, we have 2 nitrogen atoms on the left - hand side and 1 on the right - hand side. For hydrogen, we have 2 hydrogen atoms on the left - hand side and 3 on the right - hand side. To balance nitrogen, we put a 2 in front of $NH_3$: $N_2 + H_2
ightarrow2NH_3$. Now we have 6 hydrogen atoms on the right - hand side, so we put a 3 in front of $H_2$ to get the balanced equation $N_2+3H_2 = 2NH_3$. The coefficients are 1 for $N_2$, 3 for $H_2$ and 2 for $NH_3$.

Answer:

1. Solid
2. Coefficients: 1 for $N_2$, 3 for $H_2$, 2 for $NH_3$