Concrete definitions

Question 1

Electrolyisis

Answer 1

electricity is used to bring about a chemical reaction

Question 2

is the anode and cathode positive or negative in electrolyisis

Answer 2

is the anode and cathode positive or negative in electrolysis

Question 3

is the anode and cathode positive or negative in voltaic cells

Answer 3

anode is neg and cathode is positive

Question 4

special case for electrolysis of Cuso4 or any so4 ionic compound, ex Agso4

Answer 4

So4 is never chosen at anode according to IB Rules

Question 5

in the electrolysis with copper electrodes, if copper is in both anode and cathode, what will happen, and how do you explain it

Answer 5

when this occurs, the coppers cancel out and the explanation is that the copper ions formed at the anode, go to the cathode to be discharged via electroplating onto the cathode