The reaction 4Al (s) + 3O2 (g) → 2 Al2O3 (s) ΔH° = -3351 kJ is __________, and therefore, heat is __________ by the reaction. endothermic; released endothermic; absorbed exothermic; released exothermic; absorbed thermoneutral; neither released nor absorbed

General Chemistry 1 | Wyzant Ask An Expert

General Chemistry 1

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

	endothermic; released
	endothermic; absorbed
	exothermic; released
	exothermic; absorbed
	thermoneutral; neither released nor absorbed

Lauren H. answered • 10/26/18

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exothermic; released

Lisa L.

Thank you so much

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10/26/18

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