Chemistry

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Can someone check my answers?

What is the oxidation state of each element in K2Cr2O7?
K +1
Cr +6
O -2

What is the oxidation state of each element in SO32–?
S +4
O -6

  • Chemistry -

    OK on 1.
    On 2 EACH element for O is -2. The total is -6 for 3 O atoms.

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