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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. when the electrons aren't shared equally
    unequal distribution of charges
    \electrons are closer to the atom with the greater electronegativity and produces a negative charge
  4. ionic and polar substances dissolve in the water.
    hydrophillic vs hydrophobic
  5. atoms that have positive or negative charges

5 True/False questions

  1. Water having a high heat capacitychanges 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


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


  3. moleculestwo or more atoms held together by chemical bonds


  4. Hydrogen bondthe chemical bond that forms when electrons between atoms are shared
    occurs when electronegatives are similar


  5. Properties of Water1. Universal Solvent
    2. High Heat Capacity
    3. Ice
    4. Strong Cohesion/High Surface Tension
    5. Adhesion


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