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Download Electrolysis: using electricity to break up a compound into its elements
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Electrolysis Substances Things that have definite composition. Include elements and compounds. Element is only 1 type of atom Compound is 2 or more types of atoms chemically bonded Compounds Compounds can not be physically separated into elements like mixtures can. Must use a chemical reaction to separate compounds into elements. Several different types of chemical reactions could be used. Electricity To break Electrolysis: using electricity to break up a compound into its elements Direct Current (DC) Water H2O (DC current) (DC) Hydrogen gas + Oxygen gas H2 + O2 . Electrolysis of Water Oxygen Hydrogen How can we test the gases collected? Hydrogen Gas – “Pop test” Oxygen Gas – “Re-ignition test” Electrolysis limitations Can only be used on an liquid that conducts electricity or a molten metal alloy.
