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Chemistry

Chemistry. New Senior Secondary Curriculum. NSS Chemistry Curriculum Structure and Time Allocations. Compulsory Part. Planet earth Microscopic world I * Metals Acids and bases Fossil fuels and carbon compounds Microscopic world II Redox reactions, chemical cells and

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Chemistry

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  1. Chemistry New Senior Secondary Curriculum

  2. NSS Chemistry Curriculum Structure and Time Allocations

  3. Compulsory Part Planet earth Microscopic world I * Metals Acids and bases Fossil fuels and carbon compounds Microscopic world II Redox reactions, chemical cells and electrolysis Chemical reactions and energy Rate of reaction Chemical equilibrium Chemistry of carbon compounds Patterns in the chemical world

  4. F3 Chemistry Curriculum 1st Term Atomic Structure Periodic Table 2nd Term Chemical Bonding Ionic Bond Covalent Bond Mole Calculation Microscopic World I

  5. Elective Part Industrial chemistry Materials chemistry Analytical chemistry ** study any 2 out of 3 (Our school opt for Industrial chemistry & Analytical chemistry)

  6. Compulsory for all school candidates Assessment will begin from S5 Practical related tasks only Different areas involved Volumetric Analysis (VA) Qualitative Analysis (QA) Other Experiments (EXPT) Individual work & group work are required School-based Assessment (SBA) 6

  7. SBA 7

  8. Assessment

  9. Is NSS Chemistry easy or difficult ? The subject require students to • memorize • quite a number of facts (e.g. symbols, • formulae, equations, observations etc) master abstract concepts (e.g. electron, atom, molecule, intermolecular force, reaction rate, chemical equilibrium, etc.) • understandand apply • chemistry concepts & knowledge • dochemistry calculations

  10. First 20 elements – names & symbols Memorize a number of facts

  11. Ionic Compounds – names & formulae Memorize a number of facts

  12. Chemical reactions and equations Memorize a number of facts • Reaction between metal and acid Mg + 2HCl  MgCl2 + H2 2Al + 3H2SO4  Al2(SO4)3 + 3H2 • Redox reaction 2MnO4- +5SO32- + 6H+ 2Mn2+ +5SO42- + 3H2O Cr2O72- + 6Fe2+ + 14H+  2Cr3+ + 6Fe3+ + 7H2O

  13. Master abstract concepts Question The three-dimensional structures of a compound are shown below. What is their relationship? Non-superimposable mirror images

  14. 2013 HKDSE Paper IB (1c) understandand apply concepts & knowledge Explain, from molecular level, why the density of ice is lower than that of water. • Formulaof Water: H2O • Shape of water (H2O) molecule: V shaped • Force between water (H2O) molecule: “Hydrogen Bond”

  15. Do Chemistry Calculations • Relative atomic mass There are two isotopes of chlorine and the information about these two isotopes are shown below. Calculate the relative atomic mass of chlorine.

  16. Do Chemistry Calculations Mole = mass/formula mass • Mole Calculations Question Which of the following containing greatest number of mole of ions? 58.5g Sodium chloride 94g Potassium oxide 132.5g Aluminium chloride 109g Magnesium nitride

  17. Mole = mass / formula mass Greatest number of mole of ions ?

  18. Mole Ratio Do Chemistry Calculations

  19. To certain extent, NSS Chemistry is demanding ! • interested in calculations • Students with the following characters are suitable to study NSS Chemistry: • diligent (take initiative to work hard) - to understand abstract concepts • - to memorize quite a lot of facts • Quiz & test are regular & frequent • (weekly or biweekly)

  20. The End

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