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The Decomposition of Potassium Chlorate Is Written as Shown Below

Question 7

Multiple Choice

The decomposition of potassium chlorate is written as shown below.What energy change occurs when 12.3 g of KClO3 decompose?
2 KClO3(s) + 89.6 kJ → 2 KCl(s) + 3 O2(g)


A) Release of 8.99 kJ
B) Absorption of 8.99 kJ
C) Release of 4.49 kJ
D) Absorption of 4.49 kJ
E) Release of 0.00112 kJ

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