C6 Flashcards
1
Q
What is electrolysis
A
Breaks down a substance using electricity
2
Q
When can ionic compounds be electrolysed and why?
A
When they are molten or in water this is because their ions are then free to move and carry their charge to electrodes
3
Q
In electrolysis where do positive ions move to
A
The cathode which is the negative electrode
4
Q
In electrolysis whwre to the negative ions move to
A
The anode which is the positively charged electrode
5
Q
In electrolysis the ions move to…
A
The oppositely charged electrodes
6
Q
At the cathode what happens to positive ions
A
Gain electrons meaning they are reduced
7
Q
At the anode what happens to negative ions
A
Lose their electrons meaning they are oxidised
