work. 1. A considerable amount of heat is required for the decomposition of aluminum oxide. 2A1,O, (s) ----------à 4Al(s) + 30,(g) Delta H= 3352 kJ a. What is the enthalpy change for the formation of 1 mole of aluminum oxide from its elements? b. Is the reaction endothermic or exothermic?

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11:06 1
ull 5G 0
Standard Heats of Fromation_2
Chemistry Honors
Date
Name
Period
Standard Heat of Formation #2
Answer the following Problems showing your
work.
1. A considerable amount of heat is required for the
decomposition of aluminum oxide.
2A1O, (s)
-à 4Al(s) + 30,(g)
---- ----
Delta H= 3352 kJ
a. What is the enthalpy change for the formation of 1 mole
of aluminum oxide from its elements?
b. Is the reaction endothermic or exothermic?
Transcribed Image Text:11:06 1 ull 5G 0 Standard Heats of Fromation_2 Chemistry Honors Date Name Period Standard Heat of Formation #2 Answer the following Problems showing your work. 1. A considerable amount of heat is required for the decomposition of aluminum oxide. 2A1O, (s) -à 4Al(s) + 30,(g) ---- ---- Delta H= 3352 kJ a. What is the enthalpy change for the formation of 1 mole of aluminum oxide from its elements? b. Is the reaction endothermic or exothermic?
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