Name the method shown
7. Very short answer type questions
(2) Che an example of an immiscible liquid oc.
(c) Name she liquid that is called a unnersal solent. ter
d Name ovo methods which you can use to separate glublesom
8.
Short answer type questions
(2) How does solubility get attented on increasing the temperature
b) What is a solent?
(c) What is a saturated solution:
d On what basis will you choose a method of separation or a more?
Long answer type questions.
(a) Explain the need to separate components of a mixture
(b) Define
(1) Filtration
9.
(c) Explain what ma
aporation
Answers
(2) the an example of an immiscible liquid
Answer: Immiscible liquids are those which won't mix to give a single phase. Oil and water are examples of immiscible liquids - one floats on top of the other. It explains the background to steam distillation and looks at a simple way of carrying this out
(c) Name she liquid that is called a universal solvent.
Answer -- Water is called the "universal solvent" because it is capable of dissolving more substances than any other liquid. This is important to every living thing on earth
(d) Name ova methods which you can use to separate glublesom
answer --- Centrifuges can be used to separate the cream from the skim milk. The centrifuge consists of up to 120 discs stacked together at a 45 to 60 degree angle and separated by a 0.4 to 2.0 mm gap or separation channel. Milk is introduced towards the inner edge of the disc stack
2 ) How does solubility get attented on increasing the temperature
answer -- For many solids dissolved in liquid water, the solubility increases with temperature. The increase in kinetic energy that comes with higher temperatures allows the solvent molecules to more effectively break apart the solute molecules that are held together by intermolecular attractions.
b) What is a solent?
answer -- Solvent, substance, ordinarily a liquid, in which other materials dissolve to form a solution. Polar solvents (e.g., water) favour formation of ions; non polar ones (e.g., hydrocarbons) do not. Solvents may be predominantly acidic, predominantly basic, amphoteric (both), or aprotic (neither
(c) What is a saturated solution:
answer -- A solution in which the maximum amount of solvent has been dissolved. Any more solute added will sit as crystals on the bottom of the container.
d -- On what basis will you choose a method of separation or a more?
answer --
1)The density of materials.
2)The boiling point of materials.
3)State of materials.
(a) Explain the need to separate components of a mixture
Solution: -- We need to separate different components of a mixture to separate the useful components from the non-useful or some harmful components. ... So we need to separate different components of a mixture to separate the useful components from the non useful for some harmful components
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Answer:
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