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Elements, compounds and mixtures - Coggle Diagram
Elements, compounds and mixtures
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mechanical seperation
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sieving
seprating smaller particles from larger ones by passing them through a sieve which is a mesh made from metals like steel iron, etc ex. removing bran from wheat flour
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Winnowing
A heavier substance is separated from a lighter substance under the influence of wind ex. separation of sawdust and sand
Sublimation
A sublimate substance is seperated from a non-sublimable substance ex. separation of iodine from sand
the method of Separation to be used, depends on factors like
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Separation using a suitable solvent ( solvent extraction) method: A solvent is Used to dissolvethe mixture leaving behind the insoluble Component
B) Homogeneous mixtures
evaporation: a non-volatile Solid solute is separated from the solution. The solvent is lost in the form of vapours
2) Distillation the liquid is separated from a soluble solid by evaporation followed by condensation of
the evaporated liquid . both the solute and the solvent are
obtained by this method. This method is also used to separated volitile and a non-volitile liquid or mixture
3) chromatography the solubility of two
substances dissolved in the same solvent can
be different . The more solublecomponent moves fasty with the solvent gets . Separated from the components of the mixture. A very small equantity of mixture can be separated into
its components by this method
fractional distillation the miscible components are separated by
making use of the difference in their
boiling points. This method Is mostly used to separate volitile liquids one mixture of miscible liquids having s may difference in their boiling points
separating funnel two miscible components
of a mixture are separated in different layers due to
difference in the densities of two liquids
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