equivalence vs equivalent

equivalence and equivalent both are nouns.

Word	Noun	Adjective	Verb	Adverb
equivalence	Yes	No	No	No
equivalent	Yes	Yes	No	No

equivalence (noun)	equivalent (noun)
qualities that are comparable	the atomic weight of an element that has the same combining capacity as a given weight of another element; the standard is 8 for oxygen
essential equality and interchangeability	a person or thing equal to another in value or measure or force or effect or significance etc
a state of being essentially equal or equivalent; equally balanced

equivalence (adjective)	equivalent (adjective)
	being essentially equal to something