chemistry vs chemical

chemistry and chemical both are nouns.

Word	Noun	Adjective	Verb	Adverb
chemistry	Yes	No	No	No
chemical	Yes	Yes	No	No

chemistry (noun)	chemical (noun)
the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions	material produced by or used in a reaction involving changes in atoms or molecules
the way two individuals relate to each other
the chemical composition and properties of a substance or object

chemistry (adjective)	chemical (adjective)
	relating to or used in chemistry
	of or made from or using substances produced by or used in reactions involving atomic or molecular changes