4.2.3

• why use reflux

  heats -> boils -> evaporates -> condenses

  so the reactants are able to react without evaporating or catching fire

  no open flames so no combustion can occur
• reflux diagram

  A) out

  B) in

  C) condenser

  D) pear

  E) bumping

  F) open

  
• why use distillation

  separate substances with different boiling points

  gentle heat means substances will evaporate out at different boiling points

  the reactants must have a higher boiling point than the products
• distillation diagram

  A) thermometer

  B) condenser

  C) out

  D) in

  E) bumping

  F) pear