What is the heat of reaction for CH₄ + 2O₂ -> CO₂ + 2H₂O, if h – McqOptions

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1.	What is the heat of reaction for CH₄ + 2O₂ -> CO₂ + 2H₂O, if heat of formation of CH₄, O₂, CO₂ and H₂O are 10 J, 5 J, 6 J, and 12 J respectively?
A.	-10 J
B.	10 J
C.	-20 J
D.	20 J
Answer» C. -20 J

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