Send the link below via email or IMCopy
Present to your audienceStart remote presentation
- Invited audience members will follow you as you navigate and present
- People invited to a presentation do not need a Prezi account
- This link expires 10 minutes after you close the presentation
- A maximum of 30 users can follow your presentation
- Learn more about this feature in our knowledge base article
Do you really want to delete this prezi?
Neither you, nor the coeditors you shared it with will be able to recover it again.
Make your likes visible on Facebook?
Connect your Facebook account to Prezi and let your likes appear on your timeline.
You can change this under Settings & Account at any time.
Transcript of electrolysis
cathode Reactivity affects
electrolysis The negative
the cathode +ve ions are attracted to
the -ve electrode . Here
they gain electrons.
reduction -ve ions are attracted
to the +ve electrode.
Here they lose
oxidation Cryolite electroplating The negative electrode
is the metal object
want to plate
and the positive
electrode is the
pure metal you
want it to be
plated with uses of electroplating
conduction (making things like copper conduct electricity well ) is used to lower the temperature and the costs.
it brings the temperature down which makes it cheaper and easier
the electrodes are made of carbon graphite
electrolysis means the splitting up with electricity
if you pass an electric current through an ionic substance that is molten . It breaks down into elements that it's made from.
oxidation is the loss of
one or more electrons Reduction is
the gain of
one or more electrons it requires a liquid to conduct the electricity called the electrolyte
electrolytes contain free ions
they 're usually the molten or dissolved ionic substance
in either case it's free ions which conduct the electricity and allow the whole thing to work
for the circuit to be complete there's got to be a flow of electrons
electrons are taken away from ions at the postive electode and given to toehr ions at the negative electrode. positive
2cl- - 2e- ---> cl2
half equations negative electrode
2h+ +2e- -----> h2 oxide ions are attracted
to the positive electrode
oxygen is formed here and oxide ions lose electrons the oxygen reacts with the carbon dioxide and carbon dioxide is formed at the positive electrode uses electrolysis to coat the surface with another metal aluminum is made by the electrolysis of aluminum oxide aluminum oxide is melted All the negative
is formed aluminum ions
are attracted to