C6 - electrolysis Flashcards
1
Q
What does electrolysis mean
A
Splitting with electricity
2
Q
What is an electrolyte
A
A solution containing both positive and negative ions
3
Q
What do you need to move the charged ions in an electrolyte
A
A potential difference
4
Q
What charges are each electrode
A
Cathode is negative
Anode is positive
5
Q
What happens at each electrode
A
Oxidation happens at the anode, reduction happens at the cathode
6
Q
What is produced at the cathode
A
Hydrogen, unless the metal is less reactive in which case the metal
7
Q
What is produced at the anode
A
Halogens if present, otherwise oxygen
