Complete the sentence.
In this chemical reaction, propane is a ().

 - reactant
 - product
Read the underlined text carefully. Look for information about what happens to propane in this chemical reaction.
Have you ever eaten food that was cooked on a grill? Some grills are powered by propane gas. The propane combines with oxygen in the air to make carbon dioxide gas and water vapor. This process releases energy in the form of heat, creating a flame that cooks the food.
The underlined text tells you that when propane and oxygen combine, carbon dioxide and water are formed. When propane and oxygen react, or go through a chemical change, their atoms are rearranged to form carbon dioxide and water. Because propane reacts in this chemical reaction, propane is a reactant.