Consider the following chemical equation: What is Hrxn for the reaction 2 C 4 A +

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Consider the following chemical equation:2 A + B  C ,xn 122J

What is ΔHrxn for the reaction 2 C → 4 A + 2 B?

(a) 122 J 

(b) -122 J 

(c) 244 J 

(d) -244 J

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