Draw stuctural formulas for two atoms butene that would be enantiomers. Butene is an alkene with a single double bond between 2 of its 4 carbon atoms and single bonds from its carbon atoms to 8 hydrogen atoms. Explain why your drawing shows them as enantiomers in 25 words or less

Enantiomers are pair of molecules that exist in two form , which are non-superimposible mirror image of each other . They are chiral and optically active molecules.

For alkenes , two possible geometrical isomers are possible which are diastereomer . One is cis and other is trans .Out of both only trans can form non-superimposible mirror image , thus show enantiomerism.