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The Reaction 4Al (S)+ 3O2 (G)→ 2 Al2O3 (S)ΔH° =

Question 78

Multiple Choice

The reaction 4Al (s) + 3O2 (g) → 2 Al2O3 (s) ΔH° = -3351 kJ
Is ________,and therefore heat is ________ by the reaction.


A) endothermic, released
B) endothermic, absorbed
C) exothermic, released
D) exothermic, absorbed
E) thermoneutral, neither released nor absorbed

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