Water
Water Structure Water  consists of one atom of oxygen and two atoms of hydrogen, so it has the chemical formula H2O.  The water molecule contains 2 hydrogen atoms and 1 oxygen atom. The hydrogen and oxygen atoms are held together by covalent bonds  (bonds formed by the sharing of two electrons)  and they form a letter "V" shape,  with oxygen atom at the tip and two hydrogen atoms at the ends of the two limbs. Water  (H20) is neutral.

 
 
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