Extraction of aluminium Flashcards by Millie Newey | Brainscape

Q

what is the positive electrode made of?

A

graphite (carbon)

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Q

what is the negative electrode made of?

A

graphite (carbon)

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Q

what is the main ore of aluminium?

A

bauxite

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Q

what is the reaction at the negative electrode?

A

Al3+ + 3e- –> Al

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Q

what is the reaction at the positive electrode?

A

202- –> 02 + 4e-

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Q

the oxygen then reacts with graphite at the positive electrode to produce carbon dioxide gas, what is this reaction?

A

C + 02 –> CO2

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