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30 September, 02:16

Manganese dioxide (MnO2 (s), Delta. Hf = - 520.0 kJ) reacts with aluminum to form aluminum oxide (AI2O3 (s), Delta. Hf = - 1699.8 kJ/mol) and manganese according to the equation below. 3 upper M n upper O subscript 2 (s) plus 4 upper A l (s) right arrow 2 upper A l subscript 2 upper O subscript 3 (g) plus 3 upper M n (s). What is the enthalpy of the reaction? Use Delta H r x n equals the sum of delta H f of all the products minus the sum of delta H f of all the reactants ... - 1,839.6 kJ - 1,179.8 kJ 1,179.8 kJ 1,839.6 kJ

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Answers (2)
  1. 30 September, 02:27
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    A) - 1,839.6 kJ
  2. 30 September, 02:30
    0
    -1,839.6
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