gasification vs chemical action

gasification and chemical action both are nouns.

Word	Noun	Adjective	Verb	Adverb
gasification	Yes	No	No	No
chemical action	Yes	No	No	No

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

gasification: the process of changing into gas
chemical action: (chemistry) any process determined by the atomic and molecular composition and structure of the substances involved

Other hypernyms of gasification include chemical change, chemical process.

gasification (noun)	chemical action (noun)
the process of changing into gas	(chemistry) any process determined by the atomic and molecular composition and structure of the substances involved