The use of words having different colored sides is a excellent way to introduce stereochemical concepts that might not be easily grasped when using molecular examples. We have found that concepts such as enantiomers, diastereomers, identical molecules, chirality, achirality, mirror planes of symmetry, and internal planes of symmetry are readily understood by students when using stereowordimer examples. Later, students successfully extend these concepts to the more complex stereochemistries found in molecules.
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