WORD POWER

• Electrode: A conductor in the form of a wire, rod or plate which carries electric current in and out of an electrolyte during electrolysis. 
• Electrolyte: A substance that can conduct electricity in molten state or aqueous solution and is decomposed by electric current.
• Non-electrolyte: A substance that cannot conduct electricity in molten state or aqueous solution.
• Anion: A negatively-charged ion.
• Anode: An electrode which is connected to the positive terminal of the source of electricity during electrolysis.
• Cathode: An electrode which is connected to the negative terminal of the source of electricity during electrolysis.
• Cation: A positively-charged ion.
• Electrolysis: The process whereby a compound is broken down into its constituent elements when electricity is passed through an electrolyte.
• Aqueous solution: A solution produced when a compound is dissolved in water.
• Electrochemical series: A list of ions arranged in ascending order of their tendency to discharge.
• Purification of metals: The process of obtaining a pure metal from an impure metal through electrolysis.
• Electroplating of metals: The process of coating a layer of metal onto another metal using electrolysis.
• Simple voltaic cell: A cell that converts chemical energy to electrical energy.
• Electrochemical series: An arrangement of metals based on the tendency of each metal atom to donate electrons.
• Electropositivity: A measurement of the ability of an atom to donate electrons to form a positive ion.
• Displacement reaction: A reaction where a more electropositive metal displaces another metal from its salt solution.

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