The extraction of aluminum metal from the aluminum hydroxide in bauxite ore by t

Question

The extraction of aluminum metal from the aluminum hydroxide in bauxite ore by the Hall-Heroult process is one of the most remarkable success stories of late 19th century practical chemistry, turning aluminum from a rare and precious metal into the cheap commodity it is today. In the first step, aluminum hydroxide reacts to form alumina and water: 2 Al(OH)_3(s)rightarrowAl_2 O_3(s) + 3 H_2 O(g) In the second step, alumina and carbon react to form aluminium and carbon dioxide: 2 Al_2 o_3(s) + C(s)rightarrow 4 Al(s) + 3 CO_2(g) Write the net chemical equation for the production of aluminum from aluminum hydroxide and carbon. Be sure your equation is balanced.

Explanation / Answer

4 Al(OH)3 + 3C   ------------> 4Al +   3 CO2 + 6H2O

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