3.Draw stable conformations for the following compounds(12). H NesmnainPiged a b Ph Ph b 3.Write stepwise and reasonable mechanisms for the following reactions(20) 1.Predict major product and write mechanism. 人 2火B+EOH→oE 2 3. Draw stable conformations for the following compounds (12). H H Br H Ph F Ph F H a b c Newmann Project a b c 3. Write stepwise and reasonable mechanisms for the following reactions (20) 1. Predict major product and write mechanism. Br2, hv . Br + EtOH 2. OEt