What is a pure substance?
Understand the Problem
The question is asking for a definition of a pure substance. This involves understanding its composition and characteristics in chemistry.
Answer
A pure substance has a constant composition and distinct properties; it can be an element or a compound.
A pure substance is a material with a constant chemical composition and distinct properties. It can be an element or a compound, and it cannot be separated into different kinds of matter through physical means.
Answer for screen readers
A pure substance is a material with a constant chemical composition and distinct properties. It can be an element or a compound, and it cannot be separated into different kinds of matter through physical means.
More Information
Examples of pure substances include water (H2O), which is a compound, and gold (Au), which is an element.
Tips
A common mistake is thinking 'pure' means the substance is free from contaminants. In chemistry, it refers to a substance with a fixed composition.
Sources
- Definition, Examples, Difference between Pure Substance & Mixture - byjus.com
- 3.5: Pure Substances and Mixtures - Chemistry LibreTexts - chem.libretexts.org
- Pure Substance Definition in Chemistry - ThoughtCo - thoughtco.com
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