객관식
Which of the following represents an oxidation half-reaction?
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6. Chemical Quantities & Aqueous Reactions
Calculate Oxidation Numbers
객관식
What is the oxidation number of the carbon atom in carbon monoxide (CO)?
A
+2
B
-2
C
0
D
+1
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검증된 단계별 안내1
Recall that the oxidation number of oxygen in most compounds is usually -2.
Assign the oxidation number of oxygen in CO as -2.
Let the oxidation number of carbon be x. Since CO is a neutral molecule, the sum of oxidation numbers must be zero.
Write the equation for the sum of oxidation numbers: \(x + (-2) = 0\).
Solve for x to find the oxidation number of carbon: \(x = +2\).
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