Question

What will be the coefficient in front of the ammonia molecule?

Answer 1

1) Balance the chemical equation

`N_2+H_2\rightarrow NH_3`

2) Balance Nitrogen

`N_2+H_2\rightarrow2NH_3`

3) Balance Hydrogen

`N_2+3H_2\rightarrow2NH_3^{}`

The coefficient in front of ammonia is 2.