Question

If you add 14g of Hydrogen to excess oxygen, how much water should form?

Answer 1

H2 = 2 grams/mol
O = 16 grams/mol
H2O = 18 grams /mol
so
14 grams H2 is 7 mol

that means we get 7 mol of water
7 * 18 = 126 grams

Answer 2

adddfgggs