Electrolysis

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What is electrolysis?
The flow of charge by moving ions.
1 of 10
What happens to the negative cathode in the purification of copper?
It gains mass as pure copper is plated onto it.
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What is the only thing that affects the number of ions discharged?
The amount of charge transferred.
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Where do positive ions move toward?
The cathode.
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What happens when ions reach the electrodes and are discharged?
They turn into atoms or molecules.
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Hydrogen and and chlorine are reactive, so why is it important to use inert electrodes?
So the products don't react before they are collected and the electrodes do not dissolve.
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What happens to the positive anode in the purification of copper?
It loses mass as the copper dissolves.
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Why does the concentration of the copper(II) sulfate electrolyte stay the same?
As the impure copper anode dissolves, pure copper is plated onto the cathode at the same rate.
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Where do negative ions move toward?
The anode.
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Does the anode OR the cathode look like a carrot?
Anode
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Other cards in this set

Card 2

Front

What happens to the negative cathode in the purification of copper?

Back

It gains mass as pure copper is plated onto it.

Card 3

Front

What is the only thing that affects the number of ions discharged?

Back

Preview of the front of card 3

Card 4

Front

Where do positive ions move toward?

Back

Preview of the front of card 4

Card 5

Front

What happens when ions reach the electrodes and are discharged?

Back

Preview of the front of card 5
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