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AP Chem, balance Redox equation

  • Thread starter gigi9
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Please help me w/ the 2 redox equations. Show me how to assign the oxidation # and how to do it plz, especially the 1st problem. The problems are attached. Thank you very much for ur time.
 

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Are the subscripts EXACTLY what you were given in the problem statement? (I know they don't agree with the original problem statement, but you may be dealing with an instructional transcription error.)

The first reaction should show ferric hydroxide (no net charge) reacting with chrome-three (Cr(III), sometimes chromous) hydroxide to produce ferrous hydroxide and chromate ion. Get you started? You have played the "game" of adding hydroxide ions (or hydrogen ion) to one side or the other for basic (or acidic) conditions?
 

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