✅ Flashcards
1
Q
What isformed at the electrode?
A
Least reactive element
2
Q
what is the positive electrode called?
A
Anode
3
Q
what is the negative electrode called?
A
cathode
4
Q
when is hydrogen gas formed?
A
when an aqueous solution is electrolysed and the metal is more reactive
5
Q
what happens at the anode?
A
oxidation - loss ofelectrons
6
Q
what happens at cathode
A
reduction = gain of electrons
7
Q
where do metals go?
A
anode
8
Q
how is carbon used to extrct metals?
A
it absorbs the oxygen from the oxide and turns into CO2
9
Q
when to use electrolysis
A
when the element is more reactive than carbon
10
Q
what is created at the electrodes?
A
the east reactive element
