Multiple Choice
Which clue can be used to identify a chemical reaction as a combustion reaction?
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3. Chemical Reactions
Combustion Analysis
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Which product is most commonly formed during the combustion of coal to produce energy?
A
CO_2
B
H_2O_2
C
CH_4
D
NH_3
Verified step by step guidance1
Understand that combustion is a chemical reaction where a substance reacts with oxygen (O_2) to produce energy, usually in the form of heat and light.
Recognize that coal is primarily composed of carbon, along with some hydrogen, sulfur, and other elements.
During complete combustion of carbon-containing fuels like coal, carbon atoms react with oxygen to form carbon dioxide (CO_2).
Water (H_2O) is also commonly formed from the hydrogen content in coal, but the question asks for the most common product, which relates to the carbon content.
Therefore, the most commonly formed product during the combustion of coal is carbon dioxide (CO_2), as it is the main product of carbon oxidation.
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