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The reaction below shows carbon monoxide burning in oxygen.
2CO + O₂ -> 2CO₂
What is the change in the oxidation number of carbon for this reaction?


Sagot :

O has oxidation of 2-. This is essential in answering the question.

In CO, the oxidation of C is 2+ since the subscripts were both cancelled out. In CO₂
In CO₂, the oxidation of C is 4+ since O has subscript of 2.

Therefore, the change in the oxidation of carbon is 2. (4-2=2)