Electrolysis of Molten Ionic Compounds (AQA GCSE Chemistry Combined Science): Flashcards
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Type of compound electrolysis can be carried out on
Type of compound electrolysis can be carried out on
Molten ionic compounds
Why ions must be free to move in electrolysis
Why ions must be free to move in electrolysis
To conduct electricity/carry electric current
Use of electrolysis of molten ionic compounds
Use of electrolysis of molten ionic compounds
Extract pure elements/metals from ores
What ionic compounds are made of
What ionic compounds are made of
Positive and negative ions
State of ions in solid ionic compounds
State of ions in solid ionic compounds
Fixed in place and cannot move
State of ions in molten ionic compounds
State of ions in molten ionic compounds
Free to move
Temperature needed to melt ionic compounds
Temperature needed to melt ionic compounds
High temperature
Why molten ionic compounds conduct electricity
Why molten ionic compounds conduct electricity
Ions are mobile and can carry charge
Process at cathode for positive metal ions
Process at cathode for positive metal ions
Reduction
What forms at cathode in molten electrolysis
What forms at cathode in molten electrolysis
Pure metals
Process at anode for negative non-metal ions
Process at anode for negative non-metal ions
Oxidation
What forms at anode in molten electrolysis
What forms at anode in molten electrolysis
Gases or non-metallic elements