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Jbranson87 Jbranson87
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The final step of the purification of copper involves electrorefining in which copper is separated from nickel and iron by being reduced at the cathode of a cell. Why are nickel and iron not reduced?



▸ Their reduction potentials are more positive than copper's.

▸ Their reduction potentials are more negative than copper's.

▸ They cannot be deposited on a copper electrode.

▸ Their reduction potentials are more negative than water's.

▸ Their reduction requires large overvoltages.
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Chemistry: Atoms First

Chemistry: Atoms First


Edition: 4th
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piccola44piccola44
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Jbranson87 Author
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5 months ago
This helped my grade so much Perfect
zbmallo3
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Yesterday
Smart ... Thanks!
annakc
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2 hours ago
Helped a lot
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