6. Chemical Quantities & Aqueous Reactions

Calculate Oxidation Numbers

Multiple Choice
In which of the following does nitrogen have the largest positive value for its oxidation number?
583
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Open Question
What is the common oxidation state of the alkaline earth metals (Group 2)?
557
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Open Question
What is the oxidation state of each element in K₂Cr₂O₇?
723
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Open Question
The total oxide ion charge in a formula unit of COO is 2–. What is the charge on each cobalt ion?
580
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Open Question
For the reaction KClO₄ ⟶ KCl +2O₂ assign oxidation numbers to each element on each side of the equation.
538
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Open Question
Identify the oxidation state of Cl in AlCl₄⁻.
596
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Open Question
What is the oxidation state of each element in Mn(CrO₄)₂?
522
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Open Question
Assign oxidation states to each atom in each of the following species.
629
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Open Question
Which compound has the atom with the highest oxidation number?
663
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Open Question
Determine the oxidation number of all the elements in the balanced redox reaction shown below.
582
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Open Question
What is the oxidation state of each element in K₂Cr₂O₇?
532
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Open Question
What is the oxidation number of tin (Sn) in the compound Na₂SnO₂?
622
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Open Question
For the reaction KClO₂ ⟶ KCl + O₂ assign oxidation numbers to each element on each side of the equation.
518
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Open Question
Determine the oxidation number (oxidation state) of each element in the three compounds. CuCO₃
667
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Open Question
What is the oxidation number of manganese (Mn) in potassium permanganate (KMnO₄)?
439
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