chemist vs scientist

chemist and scientist both are nouns.

Word	Noun	Adjective	Verb	Adverb
chemist	Yes	No	No	No
scientist	Yes	No	No	No

As nouns, scientist is a hypernym of chemist; that is, scientist is a word with a broader meaning than chemist:

chemist (noun)	scientist (noun)
a scientist who specializes in chemistry	a person with advanced knowledge of one or more sciences
a health professional trained in the art of preparing and dispensing drugs