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5 Written questions

5 Multiple choice questions

  1. two or more atoms held together by chemical bonds
  2. Adhesion is the attraction between the unlike substances
    demonstrates capillary action
  3. water expands [because water molecules are kept seperated], and becomes less dense
    floats in liquid water
  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. tbe ability of an atom to attract an electron.
    most electronegative: F, O, N

5 True/False questions

  1. Properties of Watertwo or more atoms held together by chemical bonds

          

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

          

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

          

  4. Ionic bondsatoms that have positive or negative charges

          

  5. Water having a high heat capacityionic and polar substances dissolve in the water.
    hydrophillic vs hydrophobic

          

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