carbonate vs carbon

carbonate and carbon both are nouns.

Word	Noun	Adjective	Verb	Adverb
carbonate	Yes	No	Yes	No
carbon	Yes	No	No	No

carbonate (noun)	carbon (noun)
a salt or ester of carbonic acid (containing the anion CO3)	a copy made with carbon paper
	an abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds
	a thin paper coated on one side with a dark waxy substance (often containing carbon); used to transfer characters from the original to an under sheet of paper

carbonate (verb)	carbon (verb)
treat with carbon dioxide
turn into a carbonate