Purple paint is made by mixing 2
cups of blue paint
with 3 cups of red
paint. How much
of each color
would be needed
to make a total of
20 cups of purple
paint?

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.