Most Substances That Have Molecules with Approximately the Same Weight

question 56

Multiple Choice

Most substances that have molecules with approximately the same weight as water molecules are gases at room temperature. Water is a liquid at room temperature because of

• A) extensive hydrogen bonding between water molecules.
• B) ionic bonding between hydrogen ions and oxide ions.
• C) covalent bonding between hydrogen atoms and oxygen atoms.
• D) the lack of motion of water molecules.

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Definitions:

Marginal Cost

An additional expense incurred from the production or acquisition of one more unit of a good or service.

Efficiency

The ability of a system or process to achieve a goal using the least amount of resources possible.

External Benefits

Positive effects experienced by third parties or the broader society as a result of an economic transaction or activity that are not reflected in market prices.

Market Demand Curve

A graphical representation showing the relationship between the price of a good and the total quantity demanded by all consumers in the market.