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5 Written questions

5 Multiple choice questions

  1. tbe ability of an atom to attract an electron.
    most electronegative: F, O, N
  2. water expands [because water molecules are kept seperated], and becomes less dense
    floats in liquid water
  3. changes temperature very slowlyare stable in response to temperature changes of the surrounding air


    *when sweat evaporates, a large amount of heat is taken with it and cools your body
  4. Strong cohesion [attraction between water molecules]
    occurs because of hydrogen bonding
    High Surface Tension -- creates a water surface that is firm enough to allow insects to walk upon it
  5. Adhesion is the attraction between the unlike substances
    demonstrates capillary action

5 True/False questions

  1. polar covalent bondwhen electrons are shared equally
    electronegativities are equal

          

  2. Ionswater expands [because water molecules are kept seperated], and becomes less dense
    floats in liquid water

          

  3. Ionic bondsatoms that have positive or negative charges

          

  4. Atomwater expands [because water molecules are kept seperated], and becomes less dense
    floats in liquid water

          

  5. nonpolar covalent bondwhen electrons are shared equally
    electronegativities are equal

          

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