Chem Revision

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Across
  1. 4. use of chlorine to kill microorganisms
  2. 5. clumping of fine particles into larger ones
  3. 8. substance that dissolves another substance
  4. 10. substance that neutralises acids
  5. 12. safe to drink
  6. 14. substance that speeds up a reaction
  7. 18. substance that is dissolved
  8. 19. substance that produces hydrogen ions in water
  9. 20. mixture of solute and solvent
  10. 21. removal of insoluble solids using a filter
  11. 22. belonging to the same series
  12. 26. settling of particles by gravity
  13. 27. reaction forming salt and water
  14. 29. reaction with oxygen producing energy
  15. 30. –COOH group in acids
  16. 31. containing only single carbon–carbon bonds
  17. 32. compound with same molecular formula but different structure
Down
  1. 1. compound containing a hydroxyl group
  2. 2. group responsible for chemical properties
  3. 3. unsaturated hydrocarbon with a double bond
  4. 6. containing carbon–carbon double bonds
  5. 7. saturated hydrocarbon
  6. 9. chemical process that neutralises particle charges
  7. 11. electron-seeking particle
  8. 12. measure of acidity or alkalinity
  9. 13. compound containing only carbon and hydrogen
  10. 15. insoluble solid formed in solution
  11. 16. reaction where one atom is replaced
  12. 17. unwanted substance present
  13. 18. ability of a substance to dissolve
  14. 23. reaction where atoms add across a double bond
  15. 24. –OH group in alcohols
  16. 25. soluble base
  17. 28. substance that changes colour with pH