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[ELEMENTS COMPOUNDS
AND MIXTURES ], MIXTURES -
● Impure substances made
…
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MIXTURES -
● Impure substances made
Up of two or more kinds
Of substances
● Can be broken down
Through many ways
Ex- alloys , sugar water , rice and pulses
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TYPE - SOLID - SOLID
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Magnetic separation
Principle- separation of magnetic and non magnetic substances
Ex - marbles and pins
Sublimation
Principle- separation of Sublimation amd non Sublimation substances
Ex - frozen carbon dioxide with atmospheric pressure
Solvent extraction
Principle - separation of soluble and insoluble substances through a solvent
Ex - calcium carbonate and sodium chloride
TYPES OF MIXTURES
HOMOGENEOUS
Evaporation
Principle- separation of non volatile solute from solution ( solvent is lost )
Ex - salt water
Distillation
Principle- separation through evaporation and condensation
Ex - salt water Into Pure water
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HETEROGENEOUS
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Loading
Principle- separation by the addition of alum
Ex - alum added to muddy water ( the mud settles down )
Centrifugation
Principle- separation through centrifugal force
Ex - centrifugation of blood
TYPE - LIQUID - LIQUID
Separating funnel
Principle- separation immiscible liquid based on their densities
Ex oil and water
WHH DO WE NEED TO SEPARATE MIXTURES?
● to find out what is in the mixture
● to get Pure substances
● remove unwanted substances