Multiple Choice
Which of the following is the most common oxidation number for group 15 elements in their compounds?
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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 nitrogen in NH_3?
A
+5
B
+3
C
0
D
-3
Verified step by step guidance1
Recall that the oxidation number of hydrogen in most compounds is +1.
Let the oxidation number of nitrogen in NH_3 be x.
Write the equation for the sum of oxidation numbers in the molecule NH_3, which must equal zero because the molecule is neutral: \(x + 3(+1) = 0\).
Simplify the equation to find \(x\): \(x + 3 = 0\).
Solve for \(x\) to find the oxidation number of nitrogen.
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