energy changes

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  • Created by: Epic Al
  • Created on: 03-07-22 11:09
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  • Energy changes
    • exothermic
      • combustion
      • oxidation
      • neutralisation
      • exerts energy
      • hot reactions
      • bond making
    • endothermic
      • take energy in
      • cold reactions
      • thermal decomposition
      • bond breaking
    • using energy transfers
      • exothermic can be used is handwarmers and cans
      • endothermic can used for ice packs that dont need to  be frozen
    • reaction profiles
      • show relative difference in the energy of reactants and products on reaction profiles
    • bond energy
      • energy needed to break the bond between 2 atoms
      • measured in kJ/mol
      • energy released - energy needed
      • + exothermic
      • - endothermic

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