In the balanced equation , the values of and are:

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Question

In the balanced equation $Cr_2O_7^{2-} + xH^+ + ne^- \rightarrow 2Cr^{3+} + yH_2O$, the values of $x, n,$ and $y$ are:

Prashant Kotian · Accepted Answer

Correct answer: A. Chromium in is and goes to . Total change for 2 atoms = ().
To balance oxygen: 7 atoms require 7 molecules ().
To balance hydrogen: 14 atoms require 14 ions ().

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