molecular weight vs chemistry

molecular weight and chemistry both are nouns.

Word	Noun	Adjective	Verb	Adverb
molecular weight	Yes	No	No	No
chemistry	Yes	No	No	No

molecular weight (noun)	chemistry (noun)
(chemistry) the sum of the relative atomic masses of the constituent atoms of a molecule	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