15. Based on the provided bond energies, what is the △H°rxn for the reaction below?
(A) -564 kJ
(B) +564 kJ
(C) +270 kJ
(D) -270 kJ
(E) -612 kJ
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統計: A(0), B(1), C(3), D(20), E(0) #3227628
統計: A(0), B(1), C(3), D(20), E(0) #3227628