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SS1: CHEMISTRY - 1ST TERM

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

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Topic Content:

  • Law of Conservation of Mass (Matter)
  • Experiment to Verify the Law of Conservation of Mass

Antoine Lavoisier , a prominent French chemist, observed, in 1774, that the mass of reacting substances was the same as the mass of the product.

The law of conservation of mass (matter) states that in an ordinary chemical reaction, matter can neither be created nor destroyed. This means that in a chemical reaction, the total mass of all the reacting substances (i.e. the reactants) is equal to the total mass of the products.

Example 8.2.1:

Sodium chloride reacts with silver trioxonitrate(V) to produce silver chloride and sodium trioxonitrate(V). Na = 23, Cl = 35.5, Ag = 108, N = 14, 

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Chike Amadi
Chike Amadi
28/12/2022 11:08 AM

I learnt a whole lot. Thanks ❤️

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