look at the three chemical equations below. How many atoms of each element are in reactants? How many atoms of each element are in the products?
2H2 + O2➔ 2H2O
2Fe203➔ 4Fe+ 3O2
CI2+ 2NaBr➔ 2NaCI+ Br2

Line one: 4h atoms and 2o atoms on reactant and product side.
Line two: 4fe atoms 6o atoms on reactant and product side.
Line three: 2cl atoms, 2na atoms and 2br atoms on both the reactant and product side.

The answer should be c.