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Give IUPAC names for the following structures. (If appropriate, specify relative stereochemistry.) trans-2,3-dimethyloxirane can react with hydrochloric acid to form 3-chloro-2-butanol . +HCl (a) How many total stereoisomers are possible for 3-chloro-2-butanol ? (b) Given that opening of the epoxide ring in this reaction is stereoselective, provide the names (using IUPAC guidelines) of the only two isomeric products formed. product 1: 3-chloro-2-butanol product 2: 3-chloro-2-butanol From the choices given below, list the reagent(s) in the order needed to achieve the given transformations. List your answer as a single letter (single-step transformation) or a series of letters (mult step transformation) with no commas separating them. For example, "hg". Note: The ord in which you list your letters matters! (a) Starting with cis-3-hexene, show how to prepare meso-3,4-hexanediol. (b) Starting with cis-2-butene, show how to prepare racemic 2,3-butanediol