Answer
Law of Conservation of Mass states that mass cannot be created nor destroyed.
Law of Definite Proportions states that a specific compound contains the same proportion of elements by mass.
Law of Multiple Proportions states that in a compound, the ratios of the masses of a second element that contains 1 gram of the first element may be reduced to whole numbers.
Work Step by Step
The Law of Conservation of Mass shows that matter cannot be created or destroyed with chemical reactions or any process.
The Law of Definite Proportions states that a compound may only have one specific ratio of elements which form that specific compound. No other ratio of elements may form that compound.
The Law of Multiple Proportions proves that we may write systematic formulas with whole number subscripts or describe the number of atoms in a compound with whole numbers.