Chemistry

Matter in Our Surroundings

Suspensions

We have just studied that the substances which are soluble in water (or any other liquid) form solutions. But those substances which are insoluble in water form suspensions.
A suspension is a heterogeneous mixture in which the small particles of a solid are spread throughout a liquid without dissolving in it. Some common examples of suspensions are : Chalk-water mixture, Muddy water, Milk of Magnesia, Sand particles suspended in water, and Flour in water. Chalk-water mixture is a suspension of fine chalk particles in water; muddy water is a suspension of soil particles in water; and milk of Magnesia is a suspension of magnesium hydroxide in water. Please note that solid particles and water remain separate in a suspension. The particles do not dissolve in water. We will now study the properties of a suspension.

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Notes

Matter in Our Surroundings - Notes

1. 9. Non-Metals Have Low Densities.

2. 7. Metals are Solids at the Room Temperature

3. 3. Non-Metals are Bad Conductors of Heat and Electricity.

4. Properties of Metals

5. 2. Metals are Ductile.

6. Concentration of a Solution

7. 3. Separation by a Magnet

8. 7. Non-Metals may be Solid, Liquid or Gases at the Room Temperature.

9. 11. Non-Metals Have Many Different Colours.

10. The Case of Solutions

11. 5. Non-Metals are Generally Soft

12. Elements

13. Non-Metals

14. 8. Metals Generally Have High Melting Points and Boiling Points.

15. Impure Substances: Mixtures

16. Is Matter Around Us Pure

17. 1. Metals are Malleable.

18. 2. Separation by Centrifugation

19. 8. Non-Metals Have Comparatively Low Melting Points and Boiling Points

20. Types of Solutions

21. 6. Separation by Distillation

22. Physical And Chemical Changes

23. To Study the Properties of a Suspension

24. Effect of Temperature and Pressure on Solubility

25. Chemical Formula for daily use material

26. 1. Non-Metals are Not Malleable. Non-Metals are Brittle.

27. Properties of a Suspension

28. Separation of Scrap Iron

29. Supply of Drinking Water in a City

30. Pure Substances : Elements and Compounds

31. Solutions, Suspensions And Colloids

32. properties of a Solution

33. Solutions

34. 4. Non-Metals are Not Lustrous (Not Shiny). They are Dull in Appearance.

35. 1. Separation by a Suitable Solvent

36. Metals, Non-Metals and Metalloids

37. 3. Metals are Good Conductors of Heat and Electricity.

38. Mixtures

39. Suspensions

40. Colloids

41. 5. Separation by Chromatography

42. 10. Metals are Sonorous.

43. 2. Non-Metals are Not Ductile.

44. Metals

45. Comparison Among the Properties of Metals and Non-Metals

46. Compounds

47. Differences Between Mixtures and Compounds

48. 6. Metals are Usually Strong. They Have High Tensile Strength.

49. Properties of Non-Metals

50. Chemical Changes