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3 Written questions

3 Multiple choice questions

  1. a reaction that absorbs energy
  2. a material that increases the rate of a reaction by lowering the activation energy
  3. a reaction that releases energy in the form of heat

2 True/False questions

  1. activation energythe minimum amount of energy needed to start a reaction


  2. concentration, surface area, temperaturethe amount of one material in a given volume of another material


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