chemical science vs liberate

chemical science is a noun but liberate is not a noun.

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

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

chemical science (verb)	liberate (verb)
	release (gas or energy) as a result of a chemical reaction or physical decomposition
	grant freedom to
	give equal rights to; of women and minorities
	grant freedom to; free from confinement