Which Would You Expect to Have a Higher Melting Point

question 11

Multiple Choice

Which would you expect to have a higher melting point: sodium chloride, NaCl, or aluminum oxide, Al₂O₃?

• A)The aluminum oxide has a higher melting point because it is a larger molecule and has a greater number of molecular interactions.
• B)NaCl has a higher melting point because it is a solid at room temperature.
• C)The aluminum oxide has a higher melting point because of the greater charges of the ions, and hence the greater force of attractions between them.
• D)The aluminum oxide has a higher melting point because of the covalent bonds within the molecule.

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Definitions:

John Maynard Keynes

A British economist whose theories on government intervention in economies (Keynesian economics) have had a profound influence on modern economic and political theory.

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Refers to an economist from Britain, often notable for contributions to economic theory or policy.

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Scholars and thinkers who have contributed to the study and development of economic theories and principles in the past.

Franklin D. Roosevelt

The 32nd President of the United States, serving from 1933 to 1945, known for leading the country through the Great Depression and World War II with his New Deal programs.