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Electrolysis - Coggle Diagram
Electrolysis
Reactivity Series
Careless
Carbon
DOWN: THERMAL DECOMPOSITION (Carbon displaces everything below
UP: ELECTROLSYIS
Zebra
Zinc
A
Aluminium
Instead
Iron
Me
Magnesium
Try Learning
Lead
Calling
Calcium
How
Hydrogen
Stop
Sodium
Copper
Copper
Please
Potassium
Gold
Gold
Saved
Silver
ANODE
Oxidiation
(OILRIG)
Loses electrons
Non-metals
Made of Carbon
so needs
regularly replacing
as
carbon reacts with oxygen
for CO2
Positive Anode
attracts negative ions
CATHODE
Reduction
(REDCAT)(OILRIG)
Gains
electrons
Metals
(Aswell as
Hydrogen
)
Negative Cathode
attracts
positive
ions
Aqueous
Solution
Electrolysis
Cathode
If the
metal is more reactive than hydrogen
,
hydrogen
is produced at the cathode
Anode
If no halide ions are present
,
oxygen
and OH- ions will be present at the anode
2O2- --> O2 + 4e-
4OH- --> O2 + 2H20 + 4e-
Aswell as the ionic compounds, there are also
OH− and H+ present as the solution is aqueous.
An
electric current passed through an electrolyte
(
molten
or
dissolved
ionic compound)