Multiple Choice
What is the oxidation state of Cl in the ion ClO3^-?
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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 the compound NH3?
A
0
B
-3
C
+3
D
+5
Verified step by step guidance1
Recall that the oxidation number of hydrogen in most compounds is +1.
Let the oxidation number of nitrogen in NH3 be x.
Write the equation for the sum of oxidation numbers in the molecule NH3, 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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