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TAKE THE QUIZ“proportions”
The following 3 entries include the term proportions.
law of constant proportions
nounlaw of definite proportions
noun: a statement in chemistry: every definite compound always contains the same elements in the same proportions by weight
law of multiple proportions
noun: a statement in chemistry: when two elements combine in more than one proportion to form two or more compounds the weights of one element that combine with a given weight of the other element are in the ratios of small whole numbers
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Merriam-Webster unabridged