1. A substance that has a fixed chemical composition throughout is called a pure substance such as water, air, and nitrogen.
2. Pure Substance: The substances that are free from any kind of mixture and contain only one kind of particle are pure substances. Examples of pure substances include iron, aluminum, silver, and gold.
Answers & Comments
1. A substance that has a fixed chemical composition throughout is called a pure substance such as water, air, and nitrogen.
2. Pure Substance: The substances that are free from any kind of mixture and contain only one kind of particle are pure substances. Examples of pure substances include iron, aluminum, silver, and gold.