Differentiate between homogeneous and heterogeneous mixtures with examples

Question :

Differentiate between homogeneous and heterogeneous mixtures with examples. List the points of differences between homogeneous and heterogeneous mixtures.

Subject

Science

Standard

Class 9

Views

3319

Asked By

Vedhika

Aarohi
Answer / Solution

A homogeneous mixture is a mixture having a uniform composition throughout the mixture. For example, mixtures of salt in water, sugar in water, copper sulphate in water, iodine in alcohol, alloy, and air have uniform compositions throughout the mixtures. On the other hand, a heterogeneous mixture is a mixture having a non-uniform composition throughout the mixture. For example, composition of mixtures of sodium chloride and iron fillings, salt and sulphur, oil and water, chalk powder in water, wheat flour in water, milk and water are not uniform throughout the mixtures.

Homogeneous mixtures

Homogeneous mixtures have uniform composition.
It has no visible boundaries of separation between its constituents.

Homogeneous mixtures

Heterogeneous mixtures have non uniform composition.
It has visible boundaries of separation between its constituents.

Kirti
Answer / Solution

homogeneous mixture is a mixture in which the components are evenly distributed throughout the mixture. The composition of the mixture is the same throughout. There is only one phase of matter observed in a homogeneous mixture at a time. Examples of homogeneous mixtures include:

Air:

Air is a mixture of gases, including nitrogen, oxygen, carbon dioxide, and water vapor. The components of air are evenly distributed throughout the mixture, and the composition of air is the same throughout the world.

Salt water:

Salt water is a mixture of salt and water. The salt is evenly distributed throughout the water, and the composition of salt water is the same throughout the ocean.

Blood:

Blood is a mixture of plasma, red blood cells, white blood cells, and platelets. The components of blood are evenly distributed throughout the blood, and the composition of blood is the same throughout the body.

A heterogeneous mixture is a mixture in which the components are not evenly distributed throughout the mixture. The composition of the mixture may vary from one part of the mixture to another. There may be more than one phase of matter observed in a heterogeneous mixture at a time. Examples of heterogeneous mixtures include:

Sand and water:

Sand and water are not evenly mixed together. The sand will settle to the bottom of the water, and the composition of the mixture will vary from the top to the bottom.

Salad:

A salad is a heterogeneous mixture of lettuce, tomatoes, carrots, and other vegetables. The vegetables are not evenly mixed together, and the composition of the mixture will vary from one bite to another.

Chocolate chip cookie dough:

Chocolate chip cookie dough is a heterogeneous mixture of flour, sugar, butter, eggs, and chocolate chips. The ingredients are not evenly mixed together, and the composition of the mixture will vary from one bite to another.

In general, homogeneous mixtures are more uniform than heterogeneous mixtures. Homogeneous mixtures are also more stable than heterogeneous mixtures. This is because the components of a homogeneous mixture are evenly distributed, which makes it more difficult for them to separate. Heterogeneous mixtures, on the other hand, have components that are not evenly distributed, which makes it easier for them to separate.