c4 - electrolysis Flashcards
1
Q
what does electrolysis mean?
A
splitting up with electricity
2
Q
what do ions move towards during electrolysis?
A
electrode
3
Q
what happens when ions react at electrode?
A
they decompose
4
Q
what do positive ions move towards?
A
cathode
5
Q
what do negative ions move toward?
A
anode
6
Q
is cathode loss or gain of electrons?
A
gain
7
Q
is anode loss or gain of electrons?
A
loss
8
Q
what cant ionic solids be electrolyzed?
A
they are in a fixed position
9
Q
why can molten ionic compounds be electrolyzed?
A
ions are free
10
Q
positive ions are ……. at cathode, negative ions are ……… at anode.
A
reduced , oxidised
