Write balanced, ionic equations to show the electrode reactions which occur when copper is purified.
At the anode (where takes place) (Impure copper)
Cu → Cu²⁺ + 2e⁻
At the cathode (Where takes place) (pure copper)
Cu²⁺ + 2e⁻ → Cu
https://www.focuselearning.co.uk/s/1jstzoplah30 Focus education simulation.
Electrolysis plays an important part in extracting some metals from their ores and in purifying others.
Electrolysis is of a substance using a electric current
Any metal that is carbon in the reactivity series.
For instance
https://www.focuselearning.co.uk/s/4cre8k45a2ix Simulation to predict the products of electrolysis.
The particles that are responsible for the conductivity of electricity in metals are the (delocalsied)
The particles that are responsible for the conductivity of electricity in or aqueous ionic compounds are
The electrolysis of dilute sulphuric acid using inert electrodes produces two gases as products.
At the cathode
2H⁺ + 2e⁻ → H₂
At the anode
4OH⁻ → 2H₂O + O₂
Name a material which could be used as the inert electrodes in this experiment.
The term is used to describe a reaction which gives out heat is .
When drops of water are added to anhydrous copper sulphate heat is given out and the solid turns
The anhydrous copper sulphate can be heated to remove the water of hydration so this reaction is an example of a reaction. https://www.focuselearning.co.uk/s/4wyjvlrqy7sj
The forward and reverse reactions are not, however, both occurring at the same rate so this is not an example of equilibrium. https://www.focuselearning.co.uk/s/40aaubdwqxw0