Problem: You may want to reference (Pages 175 - 182) Section 4.9 while completing this problem.  Assign an oxidation state to each atom in each species.Cr3+

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An ion of a single element will have the same oxidation state as the charge of the ion. Note that, when the ion is written, the sign follows the magnitude of charge.  

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You may want to reference (Pages 175 - 182) Section 4.9 while completing this problem.  Assign an oxidation state to each atom in each species.

Cr3+

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Our tutors have indicated that to solve this problem you will need to apply the Calculate Oxidation Number concept. If you need more Calculate Oxidation Number practice, you can also practice Calculate Oxidation Number practice problems.