Question

these molecules are _. amines thiols enantiomers structural isomers cis - trans isomers (geometric isomers)

Explanation:

Enantiomers are non - superimposable mirror images of each other. Structural isomers have the same molecular formula but different connectivity of atoms. Cis - trans isomers have the same connectivity but different spatial arrangements around a double bond or ring. Amines contain a nitrogen atom bonded to carbon and/or hydrogen. Thiols have a sulfur - hydrogen bond attached to a carbon chain. Without seeing detailed structural features like functional groups or spatial arrangements, we can't be sure of amines or thiols. Since the molecules look like mirror images of each other, they are most likely enantiomers.

Answer:

C. enantiomers