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2 September, 06:15

In terms of energy, how would you classify the following chemical reaction?

2Cu + O2 + 315 KJ---> 2CuO A. endothermic

B. exothermic

C. both endothermic and exothermic

D. Neither endothermic nor exothermic

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Answers (2)
  1. 2 September, 09:05
    0
    It's exothermic because the KJ are on the reactants side and you get 2CuO on the products side, the energy is being released into its surroundings
  2. 2 September, 09:52
    0
    It's exothermic because the kg are on the reactants side and you get 2cuo
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