Problem: The value of ΔH° for the following reaction is -3351 kJ: 2Al (s) + 3O2 (g) → 2Al2O3 (s) The value of ΔHf° for Al2O3 (s) is __________ kJ.   a) -3351 b) -1676 c) +3351 d) -16.43 e) -32.86

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The value of ΔH° for the following reaction is -3351 kJ:

2Al (s) + 3O2 (g) → 2Al2O3 (s)

The value of ΔHf° for Al2O3 (s) is __________ kJ.

a) -3351

b) -1676

c) +3351

d) -16.43

e) -32.86

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