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Chemistry Status and Assignments

Chemistry (~462kB)

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Assignments

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1. Organic Chemistry (Matter and Materials, Grade 12)
   • Substitution, addition and elimination reactions
   • Plastics and polymers - thermoplastic and thermoset (SASOL, fuels, monomers and polymers, polymerisation)
   • Biological macromolecules - structure, properties, function
2. Bonding: molecular structure (Matter and Materials, Grade 11)
   • Bond energy and length
   • Molecular shape as predicted using the Valence Shell Electron Pair Repulsion Theory (VSEPR)
3. Quantitative aspects of chemical change (Chemical Change, Grade 11)
   • Atomic weights
   • Molecular and formula weights
   • Determining composition of substances
   • Amount of substance (mole), molar volume of gases, concentration
   • Stochiometric calculations
4. Exploiting the lithosphere (earth's crust)(Chemical systems, Grade 11)
   • mining and mineral processing - gold, iron, phosphate (SA's strengths)
   • Environmental impact of these activities
   • Energy resources and their use
5. The atmosphere (Chemical systems, Grade 11)
   • Atmospheric chemistry
   • Global warming and the environmental impact of population growth
6. Physical and Chemical Change (Chemical Change, Grade 10)
   • Microscopic interpretation of macroscopic changes (e.g. changes in conductivity and temperature)
   • Separation of particles in decomposition and synthesis reactions
   • Conservation of atoms and mass
   • Conservation of energy
   • Volume relationships in gaseous reactions
7. Representing Chemical Change (Chemical Change, Grade 10)
   • Balanced chemical equations
8. Global Cycles (Chemical Systems, Grade 10)
   • The water cycle:
     Physical changes and energy transfers: movement of water from the ocean and land surfaces as controlled by energy in sunlight. Reservoirs for water on earth.
     Macroscopic properties of the three phases of water related to their microscopic structure
   • The Nitrogen cycle:
     Chemical changes and energy transfers. Movement of nitrogen between interrelated biological and geological systems.
     Industrial fixation of Nitrogen
9. The Hydrosphere (Chemical Systems, Grade 10)
   • Composition and interaction with other global systems
   • Ions in aqueous solution: their interaction and effects
     Electrolytes and extent of ionization as measured by conductivity
     Precipitation reactions