Which of the Following Pure Substances Is a Solid at Room

question 123

Multiple Choice

Which of the following pure substances is a solid at room temperature and pressure?

• A)NH₃
• B)PH₃
• C)SiH₄
• D)CH₄
• E)AlH₃

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Definitions:

Territoriality

Behavior pattern in which one organism (usually a male) stakes out a territory of its own and defends it against intrusion by other members of the same species and sex.

Urban Dweller

A person who lives within a city or urban area.

Classical Conditioning

Classical Conditioning is a learning process that occurs when two stimuli are repeatedly paired: a response that is at first elicited only by the second stimulus is eventually elicited by the first stimulus alone.

Habituation

A simple form of learning where there is a decrease in response to a stimulus after repeated exposure.