Biology, Chemistry and Physics. Help

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A mole of the PVC monomer Vinyl Chloride weighs 62.498 grams.  6.02214199 x 10^23 monomers per 62.498 grams of Vinyl Chloride.

[Jono]

Can someone please explain polar and non polar substances, but please dont give me a wikipedia link. Explain it so its easy to understand.

Thanks

[a;sdlfkjas;df]

Polar substances have partial charges.  Nonpolar substances do not.

[Jono]

Can you be abit more specific, like give an example.

What do you mean by partial charges?

[a;sdlfkjas;df]

H2O is a polar molecule.  Partial charges:  one portion of the molecule has a net negative charge (O); one portion of the molecule has a net positive charge (2 H atoms).

[Jono]

So non polar will have the same charges. Does this make all elements non-polar?

[a;sdlfkjas;df]

No, molecular structure factors in as well, e.g. ozone is polar.