Understand that electrolysis is a viable method to extract metals from molten compounds if the target metal is too chemically reactive to be extracted by carbon reduction or physically reacts with carbon.
Recognize that such extraction processes require immense amounts of energy to successfully melt the compounds and generate the necessary electrical current.
Describe the industrial manufacture of pure aluminum through the electrolysis of a molten mixture of aluminum oxide and cryolite utilizing a positive carbon anode.
Explain the chemical rationale for using a mixed electrolyte rather than pure aluminum oxide in this process.
Explain the specific mechanism that requires the positive carbon electrode to be continually replaced over time.
