Electrolysis Solutions Flashcards
1
Q
Why can’t carbonate ions mixed with water be used for electrolysis?
A
Carbonate is insoluble meaning it cannot dissolve in water.
2
Q
What are aqueous solutions?
A
Solutions dissolved in water.
3
Q
When will hydrogen replace what is produced at the cathode in electrolysis of aqueous solutions?
A
It will only replace if the metal is more reactive than hydrogen.
4
Q
What is usually made at the anode in aqueous solutions?
A
Anode typically makes oxygen gas.
5
Q
What would change oxygen being produced at the anode in aqueous solutions?
A
If the solution originally contains an halide ion, which will then be produced at the anode.
6
Q
What are Halide Ions?
A
Elements in Group 7.
