Ch4 + 2O2 --> CO2 + 2H2O If you have 4.6 grams of CH4, and 12.2 grams of O2 available, how much CO2 could be produced.?

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8 m/s because for him to get the same amount of energy as ray is putting out, bobby, who weighs half as much as ray, needs to run twice as fast.

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.