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5 Written questions

5 Matching questions

  1. Hydroxide Ion
  2. Acid
  3. Surface Tension
  4. Hydrogen Ion
  5. Ice
  1. a A substance that increases the hydrogen ion concentration of a solution (H+ Donor)
  2. b A measure of the capacity of a liquid's surface to resist stretching or breaking.
  3. c An individual proton (H+)
  4. d The solid form of water; floats on liquid water due to the expansion and crystallization of its component molecules.
  5. e A water molecule lacking an individual proton (OH-)

5 Multiple choice questions

  1. A measurement of the intensity of heat- the average kinetic energy- of a group of molecules
  2. The number of moles of solute per liter of solution
  3. A substance that minimizes changes in the concentrations of H+ and OH- in a solution.
  4. Rain/snow/fog with a pH lower than pH 5.6
  5. A measure of the total amount of kinetic energy- due to molecular motion- in a body of matter.

5 True/False questions

  1. Molecular MassThe total mass of all the atoms in a given moleculs


  2. Evaporative CoolingA sphere of water molecules surrounding individual ions of a salt crystal or charged atoms of a polar molecule in order to dissolve it.


  3. SoluteThe substance that is dissolved in a solution


  4. CalorieThe amount of heat required to raise the temperature of 1kg of water by 1ºC (1000 cal)


  5. Heat of VaporizationThe transformation from a liquid to a gas