Chem Key Words

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Across
  1. 2. charged particle formed by electron transfer
  2. 4. heating plastics without oxygen
  3. 5. breakdown of a polymer using water
  4. 7. polymerisation that releases water
  5. 11. addition polymer made from propene
  6. 12. bond connecting repeat units
  7. 13. polymer made from chloroethene
  8. 16. disposal method where waste is buried
  9. 18. able to be broken down naturally
  10. 19. linkage found in nylon and proteins
  11. 21. long chain molecule made from repeating units
  12. 22. smallest repeating section of a polymer
  13. 23. speeds up reaction without being used up
  14. 25. plastic that softens when heated
  15. 28. small molecule that joins to form polymers
  16. 30. process of remoulding used plastics
  17. 31. tendency of an element to react
  18. 33. horizontal row in periodic table
  19. 34. loss of electrons
  20. 35. inert element with full outer shell
  21. 36. addition polymer made from ethene
Down
  1. 1. removal of an electron from an atom
  2. 3. polymerisation where no atoms are lost
  3. 6. condensation polymer with CONH links
  4. 8. linkage found in polyesters
  5. 9. chemically unreactive
  6. 10. gain of electrons
  7. 13. condensation polymer with COO links
  8. 14. negatively charged subatomic particle
  9. 15. vertical column in periodic table
  10. 17. more reactive element replaces another
  11. 20. electrons in the outer shell involved in bonding
  12. 24. reactive Group VII non metal
  13. 26. very unreactive fluorinated polymer
  14. 27. inner electrons reducing nuclear attraction
  15. 29. metal with variable oxidation states
  16. 32. energy level holding electrons