15. Usually one of the reactants in a Complete Combustion reaction is a hydrocarbon(alkane), alcohol, or sugar. What is the other reactant?

## Step 1<br />A complete combustion reaction is a type of chemical reaction where a compound, usually a hydrocarbon, reacts with an oxidizing agent. The products of this reaction are typically carbon dioxide and water.<br /><br />## Step 2<br />In a complete combustion reaction, the other reactant is always an oxidizing agent. The most common oxidizing agent used in these reactions is oxygen (O2).<br /><br />## Step 3<br />The reaction is exothermic, meaning it releases energy in the form of heat and light. This is why complete combustion reactions are often used in heating and cooking applications.