memorise

• Fractional distillation trend

  • Low chain length
  • Low viscosity
  • Low boiling point
  • High volatility
• Reaction

  1. Complete combustion -> CO2 + water

  2. Incomplete combustion -> CO or C

  3. Precipitation - cation and anion (aq) -> insoluble ionic salt

  4. Substitution
• Groups

  • G1 - Li -> Na: least reactive, least dense, high melting point
  • G7 - Cl -> Br: most reactive, least dense, least melting point