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Homework Help: Chromium Oxidation State

  1. Dec 17, 2007 #1
    I am working out a reaction and I was wondering if someone could tell me which oxidation state of chromium should be used?

    Cr(s) + AgNO3(aq) -> Cr(NO3)?(aq) + Ag(s)

    Do I use Chromium (II) Nitrate or Chromium (III) Nitrate? How do I know which one to use?

    If anyone could help explain which oxidation state of Chromium is correct, I would really appreciate it!

  2. jcsd
  3. Dec 17, 2007 #2

  4. Dec 17, 2007 #3
    Thanks rocophysics!!

    So, if you aren't given the oxidation state, always use the most stable oxidation state?

    Is this a rule?
  5. Dec 20, 2007 #4


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    Staff Emeritus
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    Yes. If there is no way to determine which oxidation state is involved in the given reaction, pick the most stable one (under the conditions).
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