In this animated lecture, pure substances, mixtures, pure substances and mixtures, classification of matter, types of pure substances, what is a pure substance in chemistry, what is mixture in chemistry, pure substances vs mixtires, pure substances elements and compounds, etc.
Also, I will teach you about the difference between pure substances and mixtures.
Q: What is a pure substance?
Q: Define pure substances?
Q: Explain pure substances with examples?
Ans: A substance which has identical particles is called a pure substance. In pure substances, all particles are the same, having same sizes, same chemical and physical properties.
For example, the iron sheet is a pure substance. It contains only iron atoms. It has no other particles. So, we say that iron sheet is a pure substance.
Note: pure substance is made up of either one type of atoms or molecules or formula unit.
Q: What is a mixture?
Q: Define Mixture?
Q: Explain mixture with examples?
Ans: A substance which has non-identical particles is called a mixture. In mixture, there are different particles, having different sizes, different chemical and physical properties.
For example, consider a sugar solution. It is made out of sugar molecules and water molecules. Sugar molecules are different from water molecules. They also have different properties. So sugar solution is not a pure substance. It is a mixture.
Q: Difference between pure substances and mixtures?
1) In pure substance, particles are chemically combined together.
2) In mixture, particles are physically combined together.
3) In pure substance, particles have same chemical and physical properties.
4) In mixture, different particles have different physical properties.
5) Pure substances have same chemical and physical properties.
6) Mixtures have different chemical and physical properties.
7) Pure substances can not be separated by any physical process.
8) Mixtures can be separated by physical process.
To learn more about pure substances and mixtures, watch this lecture till the end.
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Date Added: 2020-12-18
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