This definitions covers Key Definitions within Electrolysis of Molten Compounds for GCSE Chemistry. Revise Electrolysis of Molten Compounds in Electrolysis for GCSE Chemistry with 20 exam-style questions and 0 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 7 of 13 in this topic. Make sure you can use the exact wording confidently, because definition marks are often lost through vague language.
Topic position
Section 7 of 13
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20 questions
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0 flashcards
📖 Key Definitions
Electrolysis: The decomposition of an ionic compound (when molten or in solution) by passing electricity through it. Electrical energy is used to break down the compound into its elements.
Molten: Melted — a solid that has been heated until it becomes liquid. Molten ionic compounds can conduct electricity because the ions are free to move.
Reduction: Gain of electrons. Occurs at the cathode during electrolysis. Cations gain electrons and become neutral atoms.
Oxidation: Loss of electrons. Occurs at the anode during electrolysis. Anions lose electrons and become neutral atoms or molecules.
Half equation: An equation showing what happens at one electrode during electrolysis, including the electrons gained or lost. E.g., Pb²⁺ + 2e⁻ → Pb
Electrostatic attraction: The force of attraction between oppositely charged particles (e.g., positive cations attracted to negative cathode).