What is the heat of reaction for 2CO + O₂ -> 2CO₂, if the heat of – McqOptions

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1.	What is the heat of reaction for 2CO + O₂ -> 2CO₂, if the heat of combustion of CO = 20 J, O₂ = 5 J, and CO₂ = 25 J?
A.	5 J
B.	-5 J
C.	15 J
D.	-15 J
Answer» D. -15 J

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