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[[Image:Water-elpot-transparent-3D-balls.png|thumb|right|250px|A
[[Image:Water-elpot-transparent-3D-balls.png|thumb|right|250px|A [[water molecule]]. A molecule of water is polar because of the unequal sharing of its electrons in a "bent" structure. A separation of charge is present with negative charge in the middle (red shade), and positive charge at the ends (blue shade).]]
 
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