Final answer:Oxygen reacts with hydrocarbons during combustion, resulting in carbon dioxide and water as products, exemplified by the burning of propane in gas grills. Therefore, the correct option is A.Explanation:When a hydrocarbon burns in air, the component of the air that reacts is oxygen (O2). This process of combustion involves the hydrocarbon combining with oxygen to form carbon dioxide (CO2) and water (H2O) as the products. The reaction of hydrocarbons with oxygen is exothermic, meaning it releases a significant amount of heat energy, which is why such compounds are used as fuels. Propane (C3H8), for example, is a hydrocarbon that combusts with oxygen when used in gas grills....

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