what is A fuel is combined with oxygen to produce carbon dioxide and water.

When a fuel is combined with oxygen, a process called combustion occurs. Combustion involves the rapid oxidation of the fuel, breaking down its chemical bonds and releasing energy in the form of heat and light. The fuel undergoes a chemical reaction with oxygen, resulting in the formation of carbon dioxide (CO2) and water (H2O). This reaction is commonly referred to as the combustion reaction or burning of the fuel.