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ozone story (haloalkanes and ozone (ozone layer is being destroyed by…

- - - - 2 different substances are formed
      - a positively charged cation and a negatively charged anion
    - - two electrically uncharged radicals are formed
      - have an unpaired electron so are very reactive
  - - - halogens react with alkanes in photochemical reactions (light)
      - initiation= sunlight causes photodissociation and breaks bond, bond splits equally so each atom gets one electron forming radicals
      - propagation= radical attacks other molecules replacing atoms and causing the production of more radicals, chain reaction
      - termination= 2 radicals react to form stable molecule
- - - - put each haloalkane in a different test tube then add silver nitrate solution and ethanol (solvent)
      - the silver halide compound is insoluble so forms a precip
      - the precip forms fastest with iodoalkane so its the most reactive