law of multiple proportions vs chemistry

law of multiple proportions and chemistry both are nouns.

Word	Noun	Adjective	Verb	Adverb
law of multiple proportions	Yes	No	No	No
chemistry	Yes	No	No	No

law of multiple proportions (noun)	chemistry (noun)
(chemistry) law stating that when two elements can combine to form more than one compound the amounts of one of them that combines with a fixed amount of the other will exhibit a simple multiple relation	the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions
	the way two individuals relate to each other
	the chemical composition and properties of a substance or object