Oxidation-Reduction Reactions Question
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CH4(g)+O2(g)→CO2(g)+2H2O(l)
What is the change in the oxidation number of carbon in this reaction?
- It increases from -4 to +4.
- It decreases from +4 to 0.
- It increases from +4 to -3.
- It decreases from +4 to -2.