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Chemistry, 14.04.2020 20:28 acmdidier

The burning of 80.3 g of SiH4 at constant pressure gives off 3790 kJ of heat. Calculate △H for this reaction. SiH4(g) + 2O2(g) ⟶ SiO2(s) + 2H2O(l).
A) -1520 kJ/mol rxn.
B) - 47.2 kJ/mol rxn.
C) - 4340 kJ/mol rxn.
D) -2430 kJ/mol rxn.
E) + 4340 kJ/mol rxn.

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