electrolysis Flashcards
what is electrolysis?
splitting up a compound using electricity to get a useful part you want
draw the basic outline of the electrolysis experiment and label
(see phone for answer)
what side is the anode and the cathode?
anode +
cathode -
what is the sludge left of the rods called?
impurities
what happens at the cathode?
- reduction is gain - RIG
what happens at the anode?
- oxidation is loss - OIL
why is some mass lost?
- sticks to pot as impurities
- floating in the liquid
where to positive ions go?
negative right side
where to negative ions go?
positive left side
Cations are ……. and go to ……. side
- positive
- negative
whats made at positive electrode?
anode
whats made at negative electrode?
cathode
in electrolysis ……. must be be able to move by …….. and ……
- ions
- heating and melting
what is cryolite?
reduces temp needed for electrolysis experiment
what is the equation for the electrolysis of aluminium?
Al 3+ + 3e- —> Al
