Answer:
2H2 + O2 ⇒ 2H2O
Explanation:
In order to balance a chemical equation you need to make sure that the number of atoms on both sides of the equation are equal.
H2 + O2 = H2O
H = 2
O = 2
Products:
H = 2
O = 1
Change coefficient to 2:
H = 2 × 2 = 4
O = 1 × 2 = 2
H2 + O2 = 2H4O
H2 = 2H2 = 2 × 2 = 4
2H2 + O2 ⇒ 2H2O
Hope this helps.
