Carbohydrates

ID #2321

What is the actual difference between an enantiomer and a stereoisomer? (I understand that an enantiomer *is* a stereoisomer, but how do they differ...?)


Stereoisomers are compounds that have the same composition and the same order of atomic connections, but differ in the arrangement of molecules. Enantiomers are two stereoisomers that are non-superimposable mirror images of one another. Basically, enantiomers are examples of stereoisomers. "Stereoisomer" is a more broad term. 
Make sure that you keep these terms straight from structural isomers, which have the same molecular formulas but have different structures. Glucose and fructose are examples of structural isomers. 

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