Electrolysis Flashcards
1
Q
What is electrolysis?
A
The breaking down of compounds using electricity
2
Q
What is the name given to the compound being broken down?
A
Electrolyte
3
Q
Why do electrolytes have to be molten or dissolved in solution in order to be electrolysed?
A
They must be able to flow and carry charge
4
Q
What is the positive electrode called?
A
Anode
5
Q
What is the negative electrode called?
A
Cathode
6
Q
What ions are attracted to the cathode?
A
Positive ions
7
Q
What ions are attracted to the anode?
A
Negative ions
8
Q
If multiple elements can be formed at an electrode, which element will always be formed in terms of reactivity?
A
The least reactive element will be formed at the electrode
9
Q
What is the order of discharge at the anode?
A
Halide ion > hydroxide > all other negative ions
