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The Biological Importance of Water
Member rating: No Rating | Words: | Submitted: Sat Mar 26 2005
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The Biological Importance of Water Water is a substance whose molecule is made from two hydrogen atoms and one oxygen atom (H20) and that is in a liquid state at room temperature. This is covalent bonding, where two hydrogen atoms share their electron with one oxygen atom. As the oxygen atom has more positively charged protons than the hydrogen is has pulls on the shared electrons more strongly than the hydrogen atoms. The oxygen atom therefore has a slightly negative charge while the hydrogen a slightly positive charge. Therefore because the hydrogen and oxygen atoms are different in size and electronegativity the water molecule is non-linear and dipolar. When two water molecules get close to one another, the oppositely attracted parts of the molecules attract each other. This type of attraction is called hydrogen bonding. This polarity means that individual water molecules can from hydrogen bonds with up to four other...
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