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When ethanol is used as a fuel, what are the main products of complete combustion?

Answer and explanation

Correct answer: Carbon dioxide and water

Complete combustion means that the fuel reacts with an adequate supply of oxygen. Ethanol, C₂H₅OH, contains carbon and hydrogen; carbon is oxidised to carbon dioxide and hydrogen is oxidised to water. The balanced equation is C₂H₅OH + 3O₂ → 2CO₂ + 3H₂O. Carbon monoxide and soot indicate incomplete combustion, while sodium carbonate and hydrogen are not combustion products of ethanol.

Related tags

EthanolComplete CombustionCarbon DioxideWaterCarbon And Its CompoundsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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