Heterogeneous and Homogeneous Mixtures

What is Mixtures?

When two or more elements or compounds mix together, not necessarily in a definite ratio and do not interact chemically, then the resulting substance is known as a mixture.

For example a mixture of sand and water. There are two types of mixtures: Homogeneous and Heterogeneous mixture.

Homogeneous & Heterogeneous Mixture

Heterogeneous and Homogeneous Mixtures

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Heterogeneous and Homogeneous Definition

What is a Homogeneous Mixture?

These are the types of mixtures in which the components mixed are uniformly distributed throughout the mixture or in other words “the same throughout”. We can observe only one phase of matter in a homogeneous mixture. Key points regarding this type of mixtures:

  • Particles are distributed uniformly
  • We can’t judge a homogeneous mixture by just seeing it
  • Homogeneous mixtures are also called as solutions
  • Uniform composition
  • Example: rainwater, vinegar, etc.

What is Heterogeneous Mixture?

This is a type of mixture in which all the components are completely mixed and all the particles can be seen under a microscope. We can easily identify the components and more than one phase can be seen by naked eyes.

Key points regarding this type of mixtures:

  • Particles are distributed non uniformly
  • We can judge a heterogeneous mixture by just seeing it
  • Non-uniform composition
  • Example: seawater, pizza, etc.

Difference between Homogeneous and Heterogeneous Mixture

Homogeneous mixture

Heterogeneous mixture

It has a uniform composition It has a non-uniform composition
It has only one phase There are two or more phases
It can’t be separated out physically It can be separated out physically
‘homo’ means the same ‘hetero’ means different
Example: a mixture of alcohol and water Example: a mixture of sodium chloride and sand


Soft drink: Homogeneous or Heterogeneous mixture?

In a homogeneous mixture, all the components are uniformly distributed and in the soft drink, we find components like sweetener, carbon dioxide and water forming a single phase. Therefore, a soft drink is a homogeneous mixture.


1. Which is a heterogeneous mixture?
Ans: A heterogeneous mixture is not any compositionally uniform mixture-it is a non-uniform mixture with smaller component parts.

2. Which mixture is homogeneous?
Ans: A homogeneous mixture is a mixture throughout the solution in which the composition is uniform. The saltwater mentioned above is homogeneous due to the even distribution of the dissolved salt throughout the entire sample of saltwater.

3. What are heterogeneous and homogeneous mixtures examples?
Ans: Through combining two or more substances, a mixture is produced. A homogeneous solution tends to be identical, no matter how you sample it. Homogeneous mixtures are sources of water, saline solution, some alloys, and bitumen. Sand, oil and water, and chicken noodle soup are examples of heterogeneous mixtures.

4. Which best describes a heterogeneous mixture?
Ans: A heterogeneous mixture is a mixture where throughout the solution the composition is not uniform. Through definition, a single-phase consists of a pure substance or a homogeneous mixture. There are two or more phases of a heterogeneous mixture.

5. Is air homogeneous or heterogeneous?
Ans: A heterogeneous mixture is a type of mixture that allows the components to be seen as two or more phases are present. A mixture is an example of water. Water is a homogeneous mixture of nitrogen, oxygen and smaller amounts of other compounds in the gaseous materials.

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  11. The best explaination of the 2 mixtures so far. Well done. Thank you.

  12. Kalpana Komalinee

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