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5 Written Questions

5 Multiple Choice Questions

  1. weak bonds between molecules
    form when H+ is in a covalent bond, but is attracted to another molecule [usually with a high electronegativity] in another covalently bonded molecule
  2. atoms that have positive or negative charges
  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. the chemical bond that forms when electrons between atoms are shared
    occurs when electronegatives are similar

5 True/False Questions

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

          

  2. moleculestwo or more atoms held together by chemical bonds

          

  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. Water -- AdhesionAdhesion is the attraction between the unlike substances
    demonstrates capillary action

          

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