The Most Useful Ore of Aluminum Is Bauxite, in Which

question 33

Multiple Choice

The most useful ore of aluminum is bauxite, in which Al is present as hydrated oxides, Al₂O₃ · xH₂O. The number of kilowatt-hours of electricity required to produce 3.00 kg of aluminum from electrolysis of compounds from bauxite is ________ when the applied emf is 4.50 V.

• A)0.0249
• B)0.0402
• C)26.8
• D)13.4
• E)40.2

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Definitions:

Fixture

An item of personal property that has been attached to or closely associated with real property in such a way that it becomes legally part of the real property.

Attachment

In general, the process of taking a person’s property under an appropriate judicial order by an appropriate officer of the court. Used for a variety of purposes, including the acquisition of jurisdiction over the property seized and the securing ofproperty that may be used to satisfy a debt.

Intent

The state of mind directing actions towards a specific objective, significant in law, indicating the purpose behind an action.

Adaptation

The process of adjusting or modifying something or someone to make it suitable for a new use or purpose.