Multiple Choice
Which of the following correctly lists the reactants and products in the complete combustion of butane (C_4H_{10}) with excess oxygen?
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3. Chemical Reactions
Combustion Analysis
Multiple Choice
When methanol (CH_3OH) is ignited in the presence of excess oxygen, which of the following sets of products is formed?
A
CO and H_2
B
CO_2 and H_2O
C
C and H_2O
D
CH_4 and O_2
Verified step by step guidance1
Identify the type of chemical reaction taking place. Since methanol (CH_3OH) is ignited in the presence of excess oxygen, this is a combustion reaction.
Recall that the complete combustion of a hydrocarbon or alcohol in excess oxygen produces carbon dioxide (CO_2) and water (H_2O) as products.
Write the general form of the combustion reaction for methanol: \(\mathrm{CH_3OH} + \mathrm{O_2} \rightarrow \mathrm{CO_2} + \mathrm{H_2O}\).
Balance the combustion reaction by ensuring the number of atoms of each element is the same on both sides of the equation.
Confirm that the products are carbon dioxide (CO_2) and water (H_2O), which matches the correct answer choice.
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