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Which chemical equation is balanced? a. co2 + 4h2 -> ch4 + 2h2o b. 4co2 + h2 -> ch4 + 2h2o c. co2 + 4h2 -> 2ch4 + 2h2o d. 2co2 + 2h2 -> 2ch4 + 2h2o
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Which chemical equation is balanced? a. co2 + 4h2 -> ch4 + 2h2o b. 4co2 + h2 -> ch4 + 2h2o...
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