rich vs chemical science

rich and chemical science both are nouns.

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

rich (noun)	chemical science (noun)
people who have possessions and wealth (considered as a group)	the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions

rich (adjective)	chemical science (adjective)
possessing material wealth
having an abundant supply of desirable qualities or substances (especially natural resources)
suggestive of or characterized by great expense
high in mineral content; having a high proportion of fuel to air
causing indignation due to hypocrisy
affording an abundant supply
strong; intense
marked by great fruitfulness
pleasantly full and mellow
marked by richness and fullness of flavor
containing plenty of fat, or eggs, or sugar
of great worth or quality
very productive