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5 Written questions

5 Multiple choice questions

  1. water expands [because water molecules are kept seperated], and becomes less dense
    floats in liquid water
  2. consists of a nucleus of positively charged protons and neutrally charged neuron
  3. Adhesion is the attraction between the unlike substances
    demonstrates capillary action
  4. tbe ability of an atom to attract an electron.
    most electronegative: F, O, N
  5. 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

5 True/False questions

  1. Covalent Bondthe chemical bond that forms when electrons between atoms are shared
    occurs when electronegatives are similar

          

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

          

  3. polar covalent bondwhen 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. moleculesatoms that have positive or negative charges

          

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

          

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