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Energy Changes (EXOTHERMIC AND ENDOTHERMIC REACTIONS (Energy Level…

- - - - temperature INCREASE
      - transfer heat energy from the chemicals to the surroundings, i.e. they give out heat energy
      - Products: self-heating cans (for coffee) and hand warmers
    - - temperature DECREASE
      - transfer heat energy from the surroundings to the chemicals, i.e. they take in heat energy
      - Products: sports injury packs
    - - If a reversible reaction is exothermic in one direction, then it is endothermic in the other direction
      - The same amount of energy is transferred in each direction