Hydrogen and oxygen combine in the ratio of 1:8 by mass to form water. What mass of hydrogen gas is required to react completely with 48 g of oxygen gas? State the law.
a) 6 g; Law of Conservation of Mass
b) 3 g; Law of Definite Proportions
c) 4 g; Law of Multiple Proportions
d) 2 g; Avogadro's Law
