Using your reaction roadmap as a guide, show how to convert acetylene and bromoeth- ane into 1-butene. All of the carbon atoms of the target molecule must be derived from the given starting materials. Show all intermediate molecules synthesized along the way. Br Acetylene Bromoethane 1-Butene

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A: In this step, H2O acts as a base. As a base, it abstracts a proton from the reacatnt.

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