Aluminium extraction (AQA GCSE Chemistry Combined Science): Flashcards
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Ore containing aluminium in nature
Ore containing aluminium in nature
Bauxite ore
Main compound in bauxite
Main compound in bauxite
Aluminium oxide ()
Why carbon can't extract aluminium
Why carbon can't extract aluminium
Al above carbon in reactivity series
Method used to extract aluminium
Method used to extract aluminium
Electrolysis
Purpose of cryolite in extraction
Purpose of cryolite in extraction
Lowers melting point
Material of positive electrode (anode)
Material of positive electrode (anode)
Carbon
Product formed at cathode
Product formed at cathode
Aluminium metal
Product formed at anode
Product formed at anode
Oxygen gas
Why carbon anodes need replacing
Why carbon anodes need replacing
React with oxygen to form
Main reason aluminium extraction is expensive
Main reason aluminium extraction is expensive
Uses huge amounts of electricity
How most reactive metals are extracted
How most reactive metals are extracted
Electrolysis of molten compounds
How moderately reactive metals are extracted
How moderately reactive metals are extracted
Heating with carbon (carbon reduction)