separated vs spaced

separated and spaced both are adjectives.

Word	Noun	Adjective	Verb	Adverb
separated	No	Yes	No	No
spaced	No	Yes	No	No

As adjectives, separated and spaced are synonyms defined as:

separated (adjective)	spaced (adjective)
spaced apart	arranged with spaces between; often used as a combining form
separated at the joint	spaced apart
being or feeling set or kept apart from others
no longer connected or joined