Question

Mixtures are either homogeneous or ___________

Answer 1

Mixture:

• A mixture is an impure substance.
• A mixture consists of two or more substances that are not combined chemically.
• A mixture has variable composition, that is, the constituents of a mixture can be present in any ratio or proportion.
• The mixture is of two types: homogeneous and heterogeneous.

Homogeneous mixture:

• A mixture is said to be homogeneous if its constituents are uniformly mixed and it has the same properties throughout.
• The constituents of a homogeneous mixture cannot be easily separated.
• For example, the air is a homogeneous mixture of different gases.

Heterogeneous mixture:

• A mixture is said to be heterogeneous if its constituents are not uniformly mixed and it does not have the same properties
• The constituents of a heterogeneous mixture can be separated.
• Iron filings and sulphur, muddy water, petrol and water are heterogeneous mixtures.

Therefore, mixtures are either homogeneous or heterogeneous.