Refer to the galvanic cell below (the contents of each half-cell are written ben...

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Refer to the galvanic cell below (the contents of each half-cell are written beneath each compartment).

The standard reduction potentials are as follows:

MnO4- + 8H+ + 5e- ® Mn2+ + 4H2O	E° = 1.51 V
Cr2O72- +14H+ + 6e- ® 2 Cr3+ +7H2O	E° = 1.33 V

What is the oxidation state of Cr in Cr₂O₇^2-?

-1

0%

+12

0%

+6

0%

+7

0%

-2

0%

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