C6: Electrolysis Flashcards
1
Q
What are electrolytes?
A
Ionic compound solutions that are able to conduct electricity
2
Q
What is the name for the negative electrode?
A
Cathode
3
Q
In the electrolysis of an aqueous solution, when is hydrogen produced at the cathode?
A
When the metal is more reactive than hydrogen
4
Q
In the electrolysis of an aqueous solution, when is oxygen produced at the anode?
A
When the solution does not contain halide ions
5
Q
Which direction do electrons travel?
A
Anode to cathode
6
Q
Why does cryolite needed to be mixed with aluminium oxide?
A
Because it lowers the melting point, allowing it to be melted
