reversibly vs chemical science

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

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

reversibly (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

reversibly (adverb)	chemical science (adverb)
in a reversible manner