✅ Flashcards
What js the compound that gets broken down in electrolysis
Electrolyte
What is the anode
Positive electrode
What is the cathode
Negative electrode
What happens in electrolysis
Positive ions go to negative electrode
Negative ions go to positive electrode
Why an substances only be electrolysed when molten?
Ions are free to move around
What is produced at the cathode on electrolysis
Less reactive element (hydrogen or metal) is produced
What is cryolite used for?
Bring down melting point
What is produced at the anode?
The gas of the electrolyte
What type of bonding is present in compounds that can be electrolysed
Ionic
What is a half equation
It shows movement of the electrons at the anodes
In aqueous solutions, what is produced st the cathode
Charged metal ions
Hydrogen
Uses of aluminium
Pans
Drink cans
Foil
Aeroplanes
What is mixed with aluminium o bring it’s melting point down
Cryolite
when is hydrogen produced at the cathode
when the metal is more reactive
What ore is aluminium found in?
bauxite
