Science, asked by sukhman215, 11 months ago

CLASS 9 SCIENCE CHAPTER 2
please answer my question 11 to 15

11. Which process can......?

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Answered by Anonymous

Answer:

12. heterogenous solutions

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Answered by DelhiQueen

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12) Name a solution which show the tyndall effect.

[tex]\implies[/tex]Heterogeneous solution

13)What is centrifugation?

$\implies$ Centrifugation is the technique which involves the application of centrifugal force to separate particles from a solution according to their size, shape, density, viscosity of the medium and rotor speed.

14)Name some homogeneous as well as heterogeneous mixture?

$\implies$ Homogeneous mixtures are sources of water, saline solution, some alloys, and bitumen.

Sand, oil and water, and chicken noodle soup are examples of heterogeneous mixtures.

15)What are the differences between Physical change and chemical change.

$\implies$ Physical changes are the changes that change the physical traits of the substance, without making any change in their internal structure. Chemical change is one that affects the internal structure of the substance, so as to form a new substance.

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CLASS 9 SCIENCE CHAPTER 2
please answer my question 11 to 15

11. Which process can......?