amphoteric vs chemical science

amphoteric is not a noun while chemical science is a noun.

Word	Noun	Adjective	Verb	Adverb
amphoteric	No	Yes	No	No
chemical science	Yes	No	No	No

amphoteric (noun)	chemical science (noun)
	the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions

amphoteric (adjective)	chemical science (adjective)
having characteristics of both an acid and a base and capable of reacting as either