Water is a well known polar molecule. So what exactly is a polar molecule? A polar molecule is a molecule that has a different charge in the chemical bonds. i.e. one part of the molecule would have a positive charge while the other would have a negative charge. Water contains one oxygen molecule which has a negative charge and two hydrogen molecules which have a positive charge. Above is a sketch of a water molecule.
Source: WWW.daviddarling.info/encyclopedia/p/polarmol.html
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