Answer:
H2 + 3N2 ⇒ 2NH3
Explanation:
Remember when balancing chemical equations you are trying to make sure that each side of the equation has a equal number of atoms, and when one sides number of atoms is odd you need to multiply to get a even number.
H2 + N2 = NH3
N = 1 × 2 = 2
H = 3 × 2 = 6
N = 2 × 1 = 2
H = 3 × 2 = 6
H2 + 3N2 ⇒ 2NH3
Hope this helps.
