Multiple Choice
What is the sum of the oxidation numbers of all atoms in a neutral molecule of magnesium sulfate (MgSO_4)?
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Calculate Oxidation Numbers
Struggling with General Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
What is the oxidation number of carbon in CO?
A
-2
B
+4
C
+2
D
0
Verified step by step guidance1
Recall that the oxidation number of oxygen in most compounds is usually -2.
Let the oxidation number of carbon in CO be x.
Write the equation for the sum of oxidation numbers in the molecule: \(x + (-2) = 0\) because CO is a neutral molecule.
Solve the equation for x: \(x - 2 = 0\) which gives \(x = +2\).
Therefore, the oxidation number of carbon in CO is +2.
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