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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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  14. Balance the following equations by ion electron method: a. Cr(2)O(7)...

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  15. Balance the following equations by ion electron (half reaction) method...

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  18. In the reaction: Cr(2)O(7)^(2-) + 14H^(o+) + 6I^(Ө) rarr2Cr^(3+) + 3...

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