Question

what are the products of a combustion reaction?
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oxygen
water
carbon dioxide
hydrocarbon

Explanation:

Step1: Analyze combustion reaction formula

Combustion of hydrocarbon ($\text{C}_{x}\text{H}_{y}$) with oxygen ($\text{O}_{2}$) produces carbon dioxide ($\text{CO}_{2}$) and water ($\text{H}_{2}\text{O}$). The general formula is $\text{C}_{x}\text{H}_{y}+\text{O}_{2}\to\text{CO}_{2}+\text{H}_{2}\text{O}$.

Step2: Identify products

From the formula $\text{C}_{x}\text{H}_{y}+\text{O}_{2}\to\text{CO}_{2}+\text{H}_{2}\text{O}$, the products are carbon dioxide ($\text{CO}_{2}$) and water ($\text{H}_{2}\text{O}$).

Answer:

carbon dioxide, water