27. the diagram shows an electrolytic cell in
which the electrodes are tin and copper.
switch
battery
sn (s)
beaker
ces)
saul
solution
when the switch is closed, what will happen
to the two electrodes?
(1) b will dissolve and a will become coated
with tin.
(2) a will dissolve and a rbeit sonfed
with tin.
(3) b will dissolve and a will become coated
with copper.
(4) a will dissolve and b will become coated
with copper