Mixtures

Let us learn about "Mixtures"

a mixture is a material system made up by two or more different substances which are together but are not combined chemically. Mixture refers to the physical combination of two or more substances the identities of which are retained.

A mixture is a material containing two or more elements or compounds that are in close contact and are mixed in any proportion. The components of a mixture can be separated by physical means.

For example, air, gun powder, etc.

Properties of a mixture

A mixture may be homogenous or heterogeneous. A homogenous mixture has a uniform composition throughout its mass. For example, sugar or salt dissolved in water, alcohol in water, etc. A heterogeneous mixture does not have a uniform composition throughout its mass. There are visible sharp boundaries.

For example: Oil and water, salt and sand, etc.

The constituents of a mixture can be separated by physical means like filtration, evaporation, sublimation and magnetic separation.

In the preparation of a mixture, energy is neither evolved nor absorbed.

A mixture has no definite melting and boiling point.

In our next blog we shall learn about metallic bond

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