Electrolysis

Question 1

What is electrolysis?

Answer 1

The breakdown of ionic substances into simpler substances when an electric current is passed through them

Question 2

What does PANIC mean?

Answer 2

P ositive
A node
N egative
I s
C athode

Question 3

What is the purpose of the cathode?

Answer 3

• positive ions gain electrons
• this is reduction
• negative electrode

Question 4

What is the purpose of the anode?

Answer 4

• negative ions lose elections and become atoms
• this is oxidation
• positive electrode

Question 5

What is: OILRIG?

Answer 5

O xidation
I s
L oss
R eduction
I s
G ain

Question 6

Cathode: Eg:

Answer 6

Na+ + e- > Na
|__|
Completed the
element

Question 7

Anode: Eg:

Answer 7

2Cl- > Cl2 + 2e-
|____|
An electron is lost

Question 8

What is the order of discharge?

Answer 8

Halide Ion
     ⬇️
Hydroxide
     ⬇️
Other Ions