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5 Written questions

5 Multiple choice questions

  1. 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
  2. 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
  3. 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
  4. consists of a nucleus of positively charged protons and neutrally charged neuron
  5. the chemical bond that forms between two atoms when one or more electrons are transformed from one atom to anohter.
    happens when the electronegatives differ
    creates ions

5 True/False questions

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


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


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


  4. moleculestwo or more atoms held together by chemical bonds


  5. 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


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