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11 August, 03:13

The reactants in a chemical reaction contain 900 J of chemical energy. The products of the reaction contain 9000 J of chemical energy. Which statement best describes this chemical reaction? The reaction absorbs 9000 J of energy from the surroundings as it proceeds. The reaction releases 9000 J of energy to the surroundings as it proceeds. The reaction absorbs 8100 J of energy from the surroundings as it proceeds. The reaction releases 8100 J of energy to the surroundings as it proceeds. The answer is C

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  1. 11 August, 03:20
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    For the reaction to take place the energy of the reactants must reach to the energy level of the products:

    we have 900 J in the reactants and 9000 J for the products so the reactants need 8100 J to reach to the value of energy of products (900 + 8100 = 9000)

    So the correct answer is C. The reaction absorbs 8100 J of energy from the surroundings as it proceeds.
  2. 11 August, 03:38
    0
    The reaction absorbs 8100 J of energy from the surroundings as it proceeds.
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