Chemistry
Explain the term mixture. Differentiate between a homogeneous & heterogeneous mixture with one example of each in the
(a) solid-solid
(b) solid-liquid
(c) liquid-liquid state of the mixture.
Elements, Compounds & Mixtures
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Answer
A mixture is an impure substance containing more than one element or compound, mechanically mixed together in any proportion. The mixture retains the properties of its constituents (elements or compounds) and it can be separated into its components by simple mechanical or physical means.
| Homogeneous mixtures | Heterogeneous mixture |
|---|---|
| They have the same composition and properties throughout the mixture and components of the mixture are uniformly mixed throughout. | These are mixtures which have different composition and properties throughout the mixture and components of the mixture are not uniformly mixed throughout. |
| Examples: (a) Solid-solid mixture: Alloys e.g., Brass [Cu,Zn] (b) Solid-liquid mixture: Iodine and alcohol [tincture of Iodine-antiseptic] (c) Liquid-liquid mixture: Petrol & Kerosene, | Examples: (a) Solid-solid mixture: Soil (b) Solid- liquid mixture: Chalk and water (c) liquid-liquid mixture: Kerosene and water. |
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