Given: ch4 + 2o2 → co2 + 2h2o in the chemical reaction, if 10 moles of h2o are produced, moles of co2 are also produced.

No because it not possibly

Answerδh > 0explanationc₆h₆  (s)  → c₆h₆ (l)if you are changing it from a solid to a liquid, you are pretty much melting the solid. this requires heat energy. therefore, the reaction is endothermic (takes in energy); the system enthalpy increases as the reaction proceeds: δh > 0.