[Answer] 4Al(s) + 3O2(g) → 2Al2O3(s) ΔH° = -3351 kJis __________ and therefore heat is __________ by the reaction.

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4Al(s) + 3O2(g) → 2Al2O3(s) ΔH° = -3351 kJis __________ and therefore heat is __________ by the reaction. Wed Oct 08 2014 · The reaction 4Al ( s ) + 3O2 ( g ) → 2 Al2O3 ( s ) ΔH ° = - 3351 kJ is _____ and therefore heat is _____ by the reaction . The blanks are either A) endothermic absorbed B) endothermic released C) exothermic absorbed D) exothermic released E) … a considerable amount of heat is required for the decomposition of aluminum oxide. 2Al2O3 -> 4Al ( s )+ 3O2 ( g ) change in heat = 3352KJ a. what is the heat change for the formation of 1 mol of aluminum oxide from its elements? i got this one. my answer is . Chem The reaction 4Al ( s ) + 3O2 ( g ) > 2Al2O3 ( s ) deltaH° = - 3351 kJ is _____ and therefore heat is _____ by the reaction . The reaction 4Al ( s ) + 3O2 ( g ) → 2Al2O3 ( s ) ΔH ° = - 3351 kJ is _____ and therefore heat is _____ by the reaction . exothermic released. A sample of calcium carbonate [CaCO3 ( s )] absorbs 45.5 J ...

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