Question
Asked Oct 4, 2019
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In the following equation which species contains the atom which has been reduced?

6 FeCl2(aq)  +  14 HCl(aq)  +  Na2Cr2O7(aq)  →  6 FeCl3(aq)  +  2 CrCl3(aq)  +  7 H2O(l)

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Expert Answer

Step 1

The given reaction is:

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бFeC1, +14HC(ag) "va,cr,о-(ag) +2CrC13(ag)72° +6F6C1, +7H O '3 (aд) "2(а

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Step 2

The oxidation state of Fe in FeCl2 is +2.

The oxidation state of Cr in Na2Cr2O7 is +6.

The oxidation state of Fe in FeCl3 is +2.

The oxidation state of...

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бFeC1, +14HC(ag) "va,cr,о,(ag) >6 FeCl (ao+2CrCl3(aq) +7H2°a C1, 12(а

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General Chemistry

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