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Oxidation states of Chromium

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Chromium is a metal with many oxidation states, which of the following compounds has chromium in its lowest oxidation state?

Cr2O3 Cr2O7^2- MgCr2O3

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Oxidation numbers are sometimes difficult, but they will get easier with time. For the general solutions, you will need to consult the general rules to oxidations numbers (should be in any textbook, and in this library).

Use the rules you know to find the unknown oxidation ...

Solution Summary

The oxidation states of Chromium are determined.

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Determining the Oxidation State of an Element in a Compound

How do you determine the oxidation state of an element in a compound? Two well-known compounds KMnO4 and K2Cr2O7 are used as examples.

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