fluorocarbon vs chemical science

fluorocarbon and chemical science both are nouns.

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

fluorocarbon (noun)	chemical science (noun)
a halocarbon in which some hydrogen atoms have been replaced by fluorine; used in refrigerators and aerosols	the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions