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Quick question about Aluminium ? How to find its oxidation state ?

  1. May 9, 2012 #1
    1. The problem statement, all variables and given/known data

    I am struggling a bit with naming compounds.

    Al2(Cr2O7)3

    Now, I know its aluminum dichromate, and the way to find this was KNOWING the oxidation state of Al being +3 - How am I suppose to know that? How do you find that out when all you have is a basic periodic table?


    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. May 10, 2012 #2
    Anyone :)
     
  4. May 10, 2012 #3
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