Chemistry

25 May, 11:31

What needs to happen for the equation CH4 + O2 → CO2 + H2O to be balanced? A. Nothing, the equation is already balanced. B. A coefficient of 2 must be added before both products and reactants. C. A coefficient of 2 must be added before the second reactant and the second product. D. A coefficient of 2 must be added before both products.

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