Question: is 2o2 a reactant or product?
Answer: Oxygen is ALWAYS one of the reactants. Hydrocarbons – compound containing H and C General form: CxHy + O2 → COz + H2O Products are either carbon dioxide or carbon monoxide and water Complete combustion – carbon dioxide and water Ex. CH4 + 2O2 → CO2 + 2H2O Incomplete combustion – carbon monoxide and water. Ex.