a.) Ammonia reacts by an SN2 mechanism with the following alkyl bromides. Using 1 equivalent of ammonia, cis and trans 1,2-dibromocyclopentane give different products with molecular formulas shown below. Determine the structure of Compounds A and B, and explain the difference in reactivity of the two bromides. Br NH3 Compound A C3H2N Br Br NH3 Compund B C3H10BrN Br b.) Propose a mechanism for the following transformation. Include curved arrows to show the movement of the electrons, and include stereochemistry where appropriate: (6 pts) OH HO c.) In the lab you were trying to do the following reaction: CH3CH2OH Br A friend came by and asked you to go skiing. You told them yes, but needed to wait for the reaction to reach completion. Will you be able to go skiing today? EXPLAIN your reasoning!!! d.) Circle all of the molecules below that are chiral. OH O Cl OH H ? Br I H e.) Why is Nal more soluble in water than it is in acetone? Pictures may be helpful in your explanation