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Assign oxidation numbers to the elements...

Assign oxidation numbers to the elements in the following ionic compounds.
a. `NaBr` , b. `MgO` , c. `AlF_(3)`

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The correct Answer is:
A
a. +`, -1` , b. `+2, -2` , c. `+3, -1`
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CENGAGE CHEMISTRY ENGLISH-REDOX REACTIONS-Exercise
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