Asked by Namie

Is CO + O2 -> CO2 an endothermic or an exothermic reaction?
Also, are all combustion reaction endothermic?

Thanks in advance.
Answered by DrBob222
Combustion reactions that I'm familiar with are exothermic. You can find out about this one by looking up delta Hf for CO2 and CO but balance ther equstion first.
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