What's changed?

Chemistry Unit 1      
New content/new emphasis Content in from a different unit Content out to a different unit Content removed
  • Extraction of copper by phytomining, bioleaching and displacement
  • Biofuels
  • Biodegradable polymers
  • Production of ethanol by fermentation
  • Use of vegetable oils in cooking
  • Hydrophobic and hydrophilic properties of emulsifiers
  • Chemical theories for the origins of life
  • Absorption of carbon dioxide by the oceans
  • Fractional distillation of liquid air
  • Charges on protons, neutrons and electrons and atom neutrality (from C2)
  • Electronic structure of atoms and relationship with the periodic table (from C2)
  • Reaction of carbonates with acid and use of limewater to detect for carbon dioxide (from C3)
  • Alloy properties in terms of their structure and bonding (to C2)
  • Reactants and reaction conditions affecting polymer properties (to C2)
  • Analysis of food additives (to C2)
  • Use of food additives
  • Uses of noble gases

 

 

Chemistry Unit 2      
New content/new emphasis Content in from a different unit Content out to a different unit Content removed
  • Formulae of ionic compounds
  • Fullerenes
  • Thermosoftening and thermosetting polymers
  • Electroplating
  • Extraction of aluminium
  • Alloy properties in terms of their structure and bonding (from C1)
  • Reactants and reaction conditions affecting polymer properties (from C1)
  • Analysis of food additives (from C1)
  • Instrumental methods for chemical analysis (gas chromatography and mass spectrometry) (from C3)
  • Charges on protons, neutrons and electrons and atom neutrality (to C1)
  • Difference between elements in terms of proton numbers (to C1)
  • Electronic structure of atoms and relationship with the periodic table (to C1)
  • Effects of changing conditions on equilbria (to C3)
  • Haber process (to C3)
  • Atom economy

 

Chemistry Unit 3      
New content/new emphasis Content in from a different unit Content out to a different unit Content removed
  • Distinction between temporary and permanent hard water
  • Fluoride in drinking water
  • Hydrogen as a fuel (combustion and fuel cells)
  • Alcohols, carboxylic acids and esters
  • Effects of changing conditions on equilbria (from C2)
  • Haber process (from C2)
  • Reaction of carbonates with acid and use of limewater to detect for carbon dioxide (to C1)
  • Instrumental methods for chemical analysis (gas chromatography and mass spectrometry) (to C2)
  • Electronic structure of transition metals
  • Historical acid-base theories
  • Titrations involving weak acids or weak alkalis
  • Water cycle
  • Solubility of solutes and gases
  • Tests for ammonium and nitrate ions
  • Identification of organic compounds