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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What needs to happen for the equation ch4 + o2 → co2 + h2o to be balanced? a. nothing, the equation...
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