C5 Electrolysis Flashcards
1
Q
What is the name of the negative electrode?
A
Cathode
2
Q
Where do the positive ions travel?
A
Cathode
3
Q
What is the name of the positive electrode?
A
Anode
4
Q
Where do the negative ions travel?
A
Anode
5
Q
When is metal produced at the cathode?
A
When the metal is less reactive then hydrogen
6
Q
When is hydrogen produced at the cathode?
A
When the metal is more reactive then hydrogen
7
Q
When is oxygen formed at the anode?
A
When there isn’t a halide ion
8
Q
When is a halogen formed at the anode?
A
When there is a halide ion
9
Q
Where does reduction occur?
A
Cathode
10
Q
Where does oxidation occur?
A
Anode
11
Q
Write a half equation, using lead to show reduction.
A
Pb2+ + 2e- > Pb
12
Q
Write a half equation, using bromine to show oxidation
A
2Br- > Br2 + 2e-
