Which of the Following Is Not a Pure Substance

question 37

Multiple Choice

Which of the following is not a pure substance?

• A)air
• B)nitrogen gas
• C)oxygen gas
• D)argon gas
• E)table salt (sodium chloride)

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Definitions:

Cognitive Flexibility

The mental ability to switch between thinking about two different concepts, or to think about multiple concepts simultaneously.

Overgeneralize

To apply a rule or conclusion too broadly without sufficient evidence or in inappropriate situations.

Grammatical Rules

Are the guidelines that govern how words and phrases are combined to form sentences in a language.

2- To 3-Year-Old

A developmental stage in early childhood characterized by rapid physical growth, cognitive development, and the emergence of linguistic skills.