Oxygen Can Be Prepared in the Lab by Heating Potassium $\rarr$

question 21

Multiple Choice

Oxygen can be prepared in the lab by heating potassium chlorate in the presence of a catalyst.The reaction is 2KClO₃ $\rarr$ 2KCl + 3O₂.How many moles of O₂ could be obtained from one mole of KClO₃?

• A) 1.5
• B) 3.0
• C) 1.0
• D) 2.0

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Definitions:

Nonrivalry

The idea that one person’s benefit from a certain good does not reduce the benefit available to others; a characteristic of a public good.

Consumption

The use of goods and services by households, often considered a primary economic indicator.

Rivals

Competitors within a market, vying for the same customers or resources in an effort to achieve economic or strategic advantages.

Market System

(1) An economic system in which individuals own most economic resources and in which markets and prices serve as the dominant coordinating mechanism used to allocate those resources; capitalism. Compare with command system. (2) All the product and resource markets of a market economy and the relationships among them.