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SS1: CHEMISTRY - 1ST TERM

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  1. Introduction to Chemistry and Laboratory Apparatus | Week 1
    5Topics
    |
    1 Quiz
  2. Nature of Matter | Week 2
    3Topics
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    1 Quiz
  3. Separation Techniques I | Week 3
    1Topic
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    1 Quiz
  4. Separation Techniques II | Week 4
    5Topics
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    1 Quiz
  5. Particulate Nature of Matter I | Week 5
    5Topics
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    1 Quiz
  6. Particulate Nature of Matter II | Week 6
    9Topics
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    1 Quiz
  7. Symbols, Formulae & Oxidation Number | Week 7
    7Topics
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    1 Quiz
  8. Laws of Chemical Combination | Week 8
    4Topics
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    1 Quiz
  9. Chemical Equation & Chemical Combination (Chemical Bonding) I | Week 9
    4Topics
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    1 Quiz
  10. Chemical Combination (Chemical Bonding) II | Week 10
    4Topics
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    1 Quiz
  11. Chemical Combination (Chemical Bonding) III & Shapes of Covalent Molecules | Week 11
    3Topics
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    1 Quiz
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Evidence to show that matter exists in form of particles:

1. Diffusion: Movement of fluid (Liquids and gases from a region of higher concentration to a region of lower concentration). e.g. a perfume released in a section of a room can be smelt across the room. This is because the particles of the perfume have moved from one point to other points in the room.

2. Dissolution of Solid in Liquid: When a cube of sugar is dissolved in water, the sugar breaks into its particles which spread within the liquid.

3. Osmosis: Movement of water molecules from a more dilute solution to a more concentrated solution through a semi-permeable membrane. For example, if you put beans in a glass of water, the beans will swell after some days. This shows the molecules of water are made up of tiny particles which moved through the semi-permeable skin into the beans.

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