Using your modeling kit, make models of all stereoisomers of 2,3-dibromobutane. a. How many stereoisomers of 2.3-dibromobutane are there?

1. 3
2. 4
3. 6
4. 2

b. Draw line drawings of all of the stereoisomers using bold and dashed notation to designate stereochemistry. Label each of the stereocenters as either (R)- or (S)-. Draw an arrow between every pair of isomers and on the arrow describe the relationship between each pair (i. e. enantiomers, diastereomers, meso pair)