Useful Definitions of Electrochemistry

Question	Answer
Electrolysis	The use of electricity to bring about a chemical reaction
Electrolyte	A substance that when molten or dissolved in water, allows an electric current to pass through it
Electrodes	Rods that sit in the electrolyte and make electric contact with it.
Anode	The positive type of electrode
Cathode	The negative type of electrode
OPRN rule	Oxidation occurs at the Positive electrode, reduction occurs at the negative electrode
Inert electrode	Electrodes which do not react with the electrolyte in which it is placed, eg Platinum
Active electrodes	React with the electrolyte in which they are placed, eg copper

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	Created by eoin.examtime over 10 years ago

	Copied by mia.rigby over 10 years ago