No more then 100 words?

State the meaning of the terms polar and non-polar as applied to molecules and explain why some molecules are polar and other molecules are not. Illustrate your answer with the structural formulae of at least one specific example of a non-polar molecule. .
Answer:
Polar - has a positive or negative charge, usually at the ends of the molecule.

Non polar - has no charge

Some molecules are polar because the charges of the element ions do not balance because the electrons are not shared equally. One atom might exert more force than the other, "hogging" the shared electron more. Look at a water molecule as an example of that.

Non-polar molecules share electrons equally in bonding leaving behind no charge. CO2 (and most carbon compounds) and all diatomic (O2, N2, etc) compounds are non-polar.

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