dating vs chemical analysis

dating and chemical analysis both are nouns.

Word	Noun	Adjective	Verb	Adverb
dating	Yes	No	No	No
chemical analysis	Yes	No	No	No

As nouns, chemical analysis is a hypernym of dating; that is, chemical analysis is a word with a broader meaning than dating:

dating: use of chemical analysis to estimate the age of geological specimens
chemical analysis: the act of decomposing a substance into its constituent elements

Other hypernyms of dating include qualitative analysis.

dating (noun)	chemical analysis (noun)
use of chemical analysis to estimate the age of geological specimens	the act of decomposing a substance into its constituent elements