The Chemistry of Water
The shape of water and of all organic molecules is necessary to the structural and functional roles they play in living things. The shape of a water molecule and its polarity make hydrogen bonding possible. A hydrogen bond is the attraction of a slightly positive hydrogen to a slightly negative atom in the vacinity. The hydrogen bonds are weaker than an ionic or covalent bond and is not unique to water. other biological molecules such as DNA can engage in hydrogen bonding. Hydrogen bonds are what holds the two strands of DNA together. Many of the important characteristics of water rely on its polarity and hydrogen bonding.
Water freezes at 0 degrees Celsius (32 F) and boils at 100 degrees Celsius (212 F).
Water freezes at 0 degrees Celsius (32 F) and boils at 100 degrees Celsius (212 F).