introduction to electrolysis Flashcards
1
Q
what happens in electrolysis?
A
current is passed through an electrolyte
ions move towards electrodes where they react
compound decomposes
2
Q
what is an electrolyte?
A
a molten/ dissolved ionic compound
3
Q
what is a cathode and what is an anode?
A
cathode -> negative electrode
anode -> positive electrode
4
Q
what occurs at the cathode and anode during electrolysis?
A
cathode attracts positive ions and reduction happens
anode attracts negative ions and oxidation happens
5
Q
what is the mnemonic for remembering cathode and anode?
A
PANIC
positive anode
negative is cathode
