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     • Water Treatment
     • Molecular Structure
     • Experiments



Molecular Structure
Water has a variety of unique properties, many of which are a result of its unusual shape. Water molecules consist of two hydrogen atoms and one oxygen atom. Hydrogen and oxygen are both gases, but they combine to form a liquid compound: water.

The two hydrogen atoms form an angle of about 105 degrees with the oxygen atom. This angle produces an asymmetrical molecule with the oxygen atom dominating one end of the molecule and hydrogen atoms dominating the other end. This asymmetry causes the oxygen end to have a slight negative charge and the hydrogen end to have a slight positive charge.

A molecule that has (+) and (-) poles like this is called a polar molecule and can act like a magnet. The (+) end of the one water molecule repels the (+) of another and attracts another molecule's (-) end. This arrangement holds water molecules together at normal temperatures and makes it a liquid.


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