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My kid came home with a chemistry assignment today with the following questions. I haven't done...

My kid came home with a chemistry assignment today with the following questions. I haven't done chemistry in 2 years, and I can't make this work. I don't even think its possible to make it work.

Provide an example for the following:

a.) A molecule with one bond and one loan pair.

b.) A molecule with one bond and two loan pairs.

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Ans :

a) The molecule with one bond and one lone pair has the general formula of ABE according to the VSEPR theory , where A and B are atoms and E is the lone pair.

One such molecule is CN-

b) The molecule with one bond and two lone pairs has the general formula of ABE2 , where A and B are atoms and E is the lone pair again.

One such molecule is O2

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