G10 worksheet for Electrloysis

By the end of the topic, students should be able to: Explain why molten ionic compounds conduct electricity but solid ionic compounds do not. State in which direction-Anions and cations move during elecytrolysis-Electrons move in the wires joined to the electrodes in electrolysis. State the ions present , name the products and give the electrodes reactions in the electrolysis of-Molten sodium chloride using inert aqueous sodium chloride, using inert sulphuric acid using inert copper(II) sulphate using carbon electrodes-Aqueous copper (II) sulphate using copper electrode Predict the likely products of the electrolysis of a molten compoundor of an aqueous worksheet for Electrloysis Explain what happen in refining copper. Describe electroplating ( copper plating) Describe the extraction of aluminium by tick in the box if you can do the Electrolytes are ionic compounds that conduct electricity.

•An example of electroplating copper is shown in the diagram below. Metal Use Reason for use Chromium Tin Silver 2) Purifying (Refining) of metals •Similar to plating but the impure metal is the anode so it is oxidised and then reduced to a pure metal.

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  Electroplating, Chromium

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