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3-151PS3KEYF07 - CHEMISTRY 151.001 Fall 2007 ProblemSet3...

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CHEMISTRY 151.001 Fall 2007 Problem Set 3 1. For each of the following transformations: identify the nucleophilic atom and the electrophilic atom and fill in the arrows that would lead to the products shown in a single step. An example has been given below. Notice a few things: . It is necessary to draw out the Lewis structure of the reagents in order to understand the h ue reactivity of each molecule - including (especially?) ionic compounds. Rernernber Na* is a spectator ion and will not participate in covalent bond formation' etc. and thereofbre you should Dot draw arrows from or to Na'. The afrows begin at the nucleophilic aoltr (Nuc) = Lewis base = source of electrons (lone pairs, fi or o bonds) The arows end at the electrophilic alao (E-) = Lewis acid = electron deficient site The charge is conserved on each side of the a ow If a bond is made to an atom that already has 8 electrons (or 2 in the case of H) a bond must be broken so as not to break the octet rule.
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