2. Identify the following compounds as R or S.(A) S, S, R (B) S, R, S (C) R, S, S (D) S, S, S (E) R, R, R

7. Predict the specific rotation of the compound shown.(A) It is impossible to predict; it must be determined experimentally.(B) Because both asymmetric centers are R, the compound is dextrorotatory.(C) Because both asymmetric centers are S, the compound is dextrorotatory.(D) Zero; the compound is achiral.(E) Because this compound represents a racemic mixture, the compound is dextrorotatory.