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    Master this deck with 13 terms through effective study methods.

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    Created by @ladinmonty

    What is electrolysis?

    Decomposition of an ionic compound using electricity.

    What role does the cathode play in electrolysis?

    Reduction occurs here as positive ions gain electrons.

    What happens at the anode during electrolysis?

    Oxidation occurs as negative ions lose electrons.

    What products are formed during the electrolysis of molten lead bromide?

    Lead metal at the cathode and bromine gas at the anode.

    Why is hydrogen produced at the cathode in aqueous sodium chloride?

    Sodium is more reactive than hydrogen, preventing its discharge.

    How does the concentration of sodium chloride affect products at the anode?

    Concentrated solutions produce chlorine; dilute solutions produce oxygen.

    What is the purpose of using cryolite in aluminium extraction?

    It lowers the melting point of aluminium oxide.

    What is electroplating?

    Coating an object with a thin layer of metal using electrolysis.

    How does a hydrogen-oxygen fuel cell generate electricity?

    Hydrogen is oxidized and oxygen is reduced, producing electricity.

    Why is copper deposited at the cathode in copper(II) sulfate electrolysis?

    Copper ions are less reactive than hydrogen ions.

    What happens to carbon anodes during aluminium electrolysis?

    They are consumed as they react with oxygen to form carbon dioxide.

    What is a disadvantage of hydrogen fuel cells?

    Hydrogen is difficult to store and transport.

    Why is hydrogen considered a clean fuel?

    It produces only water as a by-product, with no harmful emissions.