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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Matter in Our Surroundings - Notes
1. 3. Non-Metals are Bad Conductors of Heat and Electricity.
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3. The Case of a Liquid Solute Dissolved in a Liquid Solvent
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5. 7. Metals are Solids at the Room Temperature
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6. 11. Metals Usually Have a Silver or Grey Colour
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7. 7. Non-Metals may be Solid, Liquid or Gases at the Room Temperature.
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10. Separation Of Mixture Of a Solid And a Liquids
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11. 6. Non-Metals are Not Strong. They Have Low Tensile Strength.
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13. To Study the Properties of a Colloid
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15. 11. Non-Metals Have Many Different Colours.
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18. To Study the Properties of a Compound of Iron and Sulphur
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21. 1. Separation by a Suitable Solvent
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24. To Distinguish a Colloid from a Solution
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29. 2. Separation by a Separating Funnel
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31. 6. Metals are Usually Strong. They Have High Tensile Strength.
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32. To Study the Properties of a Solution
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34. 3. Metals are Good Conductors of Heat and Electricity.
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35. 1. Separation by Fractional Distillation
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38. Separation of Mixture Of Two Solids
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44. 1. Non-Metals are Not Malleable. Non-Metals are Brittle.
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49. To Study the Properties of a Suspension
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