Stereoisomers Enantiomers:Compounds that are nonsuperimposable mirror images.Any molecule that is chiral must have an enantiomer. CH: CH3CH2 Br Br CH2CH3 2013 Pearson Education,Inc. Chapter 5 4© 2013 Pearson Education, Inc. Stereoisomers Enantiomers: Compounds that are nonsuperimposable mirror images. Any molecule that is chiral must have an enantiomer. Chapter 5 4