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5 Written questions

5 Matching questions

  1. Solvent
  2. Buffer
  3. Hydration Shell
  4. Temperature
  5. Colloid
  1. a A measurement of the intensity of heat- the average kinetic energy- of a group of molecules
  2. b A sphere of water molecules surrounding individual ions of a salt crystal or charged atoms of a polar molecule in order to dissolve it.
  3. c A stable suspension of fine particles in a liquid
  4. d The dissolving agent of a solution
  5. e A substance that minimizes changes in the concentrations of H+ and OH- in a solution.

5 Multiple choice questions

  1. Rain/snow/fog with a pH lower than pH 5.6
  2. A solution in which water is the solvent
  3. The cooling of the surface of a liquid during evaporation due to the primary vaporization of molecules with higher levels of kinetic energy (heat).
  4. Water-fearing
  5. The phenomena caused by hydrogen bonding wherein molecules of the same type are held together

5 True/False questions

  1. CalorieA stable suspension of fine particles in a liquid


  2. AdhesionThe clinging of a substance to another; caused by hydrogen bonding


  3. pHThe negative logarithm of the hydrogen ion concentration


  4. BaseThe solid form of water; floats on liquid water due to the expansion and crystallization of its component molecules.


  5. Kinetic EnergyThe amount of heat required to raise the temperature of 1kg of water by 1ºC (1000 cal)


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