Is pure air a substance or a mixture?
Understand the Problem
The question is asking for the classification of pure air, specifically whether it is considered a substance or a mixture. To answer this, we will need to analyze the composition of air and the definitions of substances and mixtures.
Answer
Air is a mixture.
Air is a mixture, not a pure substance.
Answer for screen readers
Air is a mixture, not a pure substance.
More Information
Air consists mainly of nitrogen (78.09%) and oxygen (21%), along with trace amounts of other gases. Although it is homogeneous, it is not a pure substance.
Sources
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