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  1. Activity 3:Draw a Lewis structure and space-filling model for CH2Cl2 (Dichloromethane), another common laboratory solvent. Is the molecule polar? Which end of the molecule has a slightly negative charge? Which end has a slightly positive charge? Draw several space-filling model of CH2Cl2 showing how they are aligned in liquid Dichloromethane.

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Draw a Lewis structure for  (Cl is in the middle) that puts a negative one formal charge on one O, and that has zero formal charge for the other O's and that has zero formal charge on Cl. How many bonds go to the central atom?

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