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12 questions from this quiz
Aluminium is too reactive
Bauxite
Al2O3Al_2O_3Al2O3
To lower the melting point
Graphite electrodes
Al3+Al^{3+}Al3+ ions
O2−O^{2-}O2− ions
They gain electrons and are reduced
They lose electrons and are oxidised
It is denser than the mixture
Carbon dioxide
Al3++3e−→AlAl^{3+} + 3e^- \rightarrow AlAl3++3e−→Al
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