Question

combustion reactions release ______. (1 point)
light and oxygen
light, carbon dioxide, and water
oxygen and carbon dioxide
oxygen and water

Explanation:

Combustion reactions involve a fuel reacting with oxygen. The general form of a combustion reaction for a hydrocarbon (e.g., \(C_xH_y\)) is \(C_xH_y + O_2
ightarrow CO_2 + H_2O+\text{light (and heat)}\). Oxygen is a reactant (not a product), so options with oxygen as a product (A, C, D) are incorrect.

Answer:

B. light, carbon dioxide, and water