Chapter 3 Notes
Joey Miller AP Biology Chapter 3: Water and Life The Molecule that Supports Life Water is the biological medium here on Earth. Water is the only common substance to exist in the natural environment in all three physical states of matter. The solid state of water floats on the liquid, a rare property emerging from the chemistry of the water molecule. Polar Covalent Bonds in Water Molecules Result in Hydrogen Bonding Polar Covalent Bonds ? the electrons of the covalent bonds spend more time closer to one atom than another atom Polar Molecule ? The overall charge of a molecule is unevenly distributed