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5 Written questions

5 Multiple choice questions

  1. 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
  2. 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
  3. the chemical bond that forms when electrons between atoms are shared
    occurs when electronegatives are similar
  4. water expands [because water molecules are kept seperated], and becomes less dense
    floats in liquid water
  5. consists of a nucleus of positively charged protons and neutrally charged neuron

5 True/False questions

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

          

  2. electronegativitytbe ability of an atom to attract an electron.
    most electronegative: F, O, N

          

  3. Water -- Cohesion/Surface TensionAdhesion is the attraction between the unlike substances
    demonstrates capillary action

          

  4. Properties of Waterionic and polar substances dissolve in the water.
    hydrophillic vs hydrophobic

          

  5. Ionsatoms that have positive or negative charges