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Slide 1

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Pure copper
atoms stick Dc electricity Copper (ii)
to the supply. sulphate
cathode solution
containing
Pure
cu2+ ions
Impure
copper copper
cathode
anode
The impurities are dropped at the anode as sludge
The electrical supply pulls electrons off of the copper atoms at the anode
causing them to go in solution cu2+ ions.
The positive Cu2+ ions are attracted to the negative cathode where they are given
2 electrons so they turn back into copper atoms.…read more

Slide 2

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Cathode...
· Cu2+ + 2e - Cu
Anode....
Cu 2e - + Cu2+…read more

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