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Chemical compound
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2/2/2012
 

The ratio of each element is usually expressed by chemical formula.

For example, water (H2O) is a compound consisting of two hydrogen atoms bonded to an oxygen atom. The atoms within a compound can be held together by a variety of interactions, ranging from covalent bonds to electrostatic forces in ionic bonds.

A continuum of bond polarities exist between the purely covalent bond (as in H2) and ionic bonds.

For example H2O is held together by polar covalent bonds.

Sodium chloride is an example of an ionic compound.

For more information about the topic Chemical compound, read the full article at Wikipedia.org, or see the following related articles:

 
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