| − | An '''incomplete combustion''' reaction is a combustion reaction in which [[oxygen]] (O<sub></sub>) is limited. This produces [[carbon monoxide]] (CO) and/or [[carbon]] (C) as additional products in the reaction. | + | An '''incomplete combustion''' reaction is a combustion reaction in which [[oxygen]] (O<sub>2</sub>) is limited. This produces [[carbon monoxide]] (CO) and/or [[carbon]] (C) as additional products in the reaction. |