Multiple Choice
When methanol (CH_3OH) is ignited in the presence of excess oxygen, which of the following sets of products is formed?
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3. Chemical Reactions
Combustion Analysis
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Which of the following substances is formed as a product during the complete combustion of methane (CH_4)?
A
CO_2
B
H_2
C
C_2H_6
D
CO
Verified step by step guidance1
Understand that complete combustion of a hydrocarbon like methane (CH_4) involves reacting it with oxygen (O_2) to produce carbon dioxide (CO_2) and water (H_2O).
Write the balanced chemical equation for the complete combustion of methane: \(\mathrm{CH_4 + 2\ O_2 \rightarrow CO_2 + 2\ H_2O}\).
Identify the products on the right side of the equation, which are carbon dioxide (CO_2) and water (H_2O).
Recognize that incomplete combustion can produce carbon monoxide (CO) or other hydrocarbons, but complete combustion specifically produces carbon dioxide (CO_2).
Conclude that among the given options, \(\mathrm{CO_2}\) is the correct product formed during the complete combustion of methane.
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