Question

multiple - choice question
combustion is when a fuel containing carbon and hydrogen is combined with ______ to produce energy, usually in the form of heat and light.
oxygen
water
carbon dioxide
rewatch

Explanation:

Combustion is a chemical reaction. In combustion, a fuel (with carbon and hydrogen) reacts with oxygen. For example, in the combustion of methane (\(CH_4 + 2O_2
ightarrow CO_2+2H_2O\)), oxygen is the reactant that combines with the fuel. Water (\(H_2O\)) and carbon dioxide (\(CO_2\)) are products of combustion (not reactants in the sense of what combines with the fuel to start the energy - producing reaction).

Answer:

oxygen