Water

Subdecks (1)

Cards (49)

  • Water is made out of 2 hydrogen atoms and 1 oxygen atom.
  • Oxygen does not share.
  • Water molecules are polar, and the charges are unevenly distributed.
  • A hydrogen bond is formed between a highly electronegative atom of a polar molecule and a hydrogen.
  • One hydrogen bond is weak, but many hydrogen bonds are strong.
  • Hydrogen bonds can break and reform easily.
  • Water is polar.
  • A polar molecule is a molecule with positive and negative charged regions.
  • In water, electrons are shared unequally.
  • Oxygen is electronegative, giving a partial negative charge.
  • Hydrogen atoms get a partial positive charge.
  • Water is attracted to other polar molecules as well as ions.
  • Water is a solution.
  • Water's polarity gives it the ability to dissolve both ionic compounds and other polar molecules.
  • Water has cohesion, adhesion and surface tension.
  • Cohesion is water attracted to other water molecules because of hydrogen bonding. (like a puddle)
  • Adhesion: water attracted to other polar molecules. (like sticking to surfaces)
  • Surface Tension: water being pulled together creating the smallest surface area possible. (floating)
  • Because water has both adhesive and cohesive properties, capillary action is present.
  • Capillary action gives plants the ability to transfer water from roots to leaves.
  • Capillary action is similar to water in a straw.
  • Specific Heat: the amount of heat that must be absorbed or lost before it actually changes temperature.
  • Water has a high specific heat capacity.
  • Water can absorb or release large amounts of heat with only a slight change in its own temperature.
  • Water stabilizes temperature in the entire world.
  • Water is less dense as a solid (ice) because hydrogen bonds are stable in ice.
  • Each molecule of water is bonded to 4 of its neighbors.
  • Solid (ice): water molecules are bonded together - space between is fixed.
  • Liquid (water): water molecules are constantly bounding and rebounding - space is always changing.