Answer
A combustion reaction is a type of redox reaction between some sort of combustible material, typically hydrocarbons, and elemental Oxygen gas ($O_{2}$) to produce carbon dioxide and water as the products.
Work Step by Step
Combustion reactions are always exothermic meaning they release heat to the surroundings and are also spontaneous meaning they can occur without giving it any energy since they increase the entropy of the system.
