2. From the molecules below, determine the relationship between each pair (a-b, a-c, a-d, etc.): identical, constitutional isomers, enantiomers, diastereomers. In this problem, conformational isomers are considered identical. HOCH H CON OH QH 是 HOCH。 HOH CH H OH H h 手千 HO' H d. r PUCH H CH 一 "OH CH₂OH PHON CH H -ON

For the following molecules, draw all possible stereoisomers using line-angle formulas with wedge/dash notation. Label the stereocenters as R or S. Indicate which ones are enantiomers and which ones are diastereomers. (Remember: there are 2 stereoisomers possible for a molecule with n chiral centers) (A) (B) (C) (1 chiral center) Br OH (2 chiral centers) CI OH CH3 (3 chiral centers)

Using the drawing space below, draw the mirror image of the following molecule: CI H OH Br Once you have drawn the mirror image, decide whether your mirror image is an enantiomer of the molecule above, and click the yes or no button under the drawing area. Click and drag to start drawing a structure. Is your mirror image an enantiomer? O Yes Ο NO × × ●● Ś Ś

What’s the main difference between enantiomers and diastereomers? I need help identifying the molecules.