Active Metals Often Form a Protective Oxide Surface Film That

question 46

Multiple Choice

Active metals often form a protective oxide surface film that prevents further reaction of the metal with oxygen in the air.Which metal oxide formula below is NOT correct?

• A)Al₂O₃ is aluminum oxide.
• B)Fe₂O₃ is iron(III) oxide.
• C)Na₂O is sodium oxide.
• D)MgO₂ is magnesium oxide.
• E)FeO is iron(II) oxide.

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Definitions:

Production Possibilities Frontier

A graph that illustrates the highest potential production levels for two items, considering a specific set of resources.

Assumptions

Premises or conditions accepted as true without proof for the purpose of analysis and modeling.

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A situation where a significant portion of the workforce is without jobs, spreading across most sectors and regions of an economy.

Economic Growth

Economic growth refers to an increase in a country's production of goods and services, typically measured by the growth in real gross domestic product (GDP) over time.