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For each of the following molecules, determine: (a) whether it has polar bonds; (b) what its...

For each of the following molecules, determine: (a) whether it has polar bonds; (b) what its molecular shape is; (c) whether the molecule is polar. You will need to draw the Lewis structures first.

(i) NH3. N is the central atom.

(ii) BI3. B is the central atom.

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