Law of Constant Composition
▫ for a given compound, the relative number and kind of
atoms are constant.
Law of Conservation of Mass
▫ the total mass of materials present after a chemical
reaction is the same as the total mass before the
reaction.
Law of Multiple Proportions
▫ if two elements can combine to form more than one
compound, the masses of one element that combine
with a fixed mass of the second element are in the ratio
of small whole numbers.