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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. the minimum amount of energy needed to start a reaction

2 True/False questions

  1. exothermic reactiona reaction that releases energy in the form of heat

          

  2. enzymesa biological catalyst that lowers the activation energy of reactions in cells