Mathematics

11 June, 16:12

What needs to happen for the equation CH4 + O2 → CO2 + H2O to be balanced?

A. A coefficient of 2 must be added before both products.

B. A coefficient of 2 must be added before the second reactant and the second product.

C. Nothing, the equation is already balanced.

D. A coefficient of 2 must be added before both products and reactants.

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