The Chemistry of Life
Properties of Water (H2O) NotesWater is a __________________ _______________________molecule.307848033718500Polarity: is an uneven distribution of electrons between the _________________ and __________________ atoms.A. Bohr Model of WaterThe Unusual Properties of WaterGood Solvent - Water can dissolve substances easily because of its _____________.IMPORTANCE: Allows molecules to easily move throughout an organism.Adhesion – Water molecules stick to different substances causing _______________ _ ______________, or climbing of water molecules.IMPORTANCE: Draw water out of the roots of plants and up into the leaves.Cohesion – Water molecules are attracted to each other due to _________________ bonds.IMPORTANCE: High Surface tension allows insects to walk on water.High Specific Heat Capacity –Water molecules take a lot of _____________ to increase its temperature due to the __________________ bonds. IMPORTANCE: Helps keep temperatures in the oceans stable and allows humans to keep a constant body temperature.High Heat of Vaporization – Water molecules take a lot of energy before it ______________________.IMPORTANCE: Lakes will not dry out over night.High Heat of Fusion – Water molecules need a lot of energy to be _______________ before it will turn to ________.IMPORTANCE: Lakes and creeks do not freeze over night.Expansion on Freezing – When water freezes it becomes less ____________ and allows it to ______________.IMPORTANCE: Glaciers and ice can float in oceans, lakes, and ponds so organisms can live underneath the ice ................
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