crossword puzzle

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Across
  1. 3. dispersed particles
  2. 4. international union of pure and applied chemistry
  3. 5. contains dispersed particle and dispersing medium
  4. 7. chemistry of life
  5. 13. semi-conductors
  6. 15. negatively charged particle
  7. 16. basic unit of matter
  8. 18. heat is released
  9. 19. sticks to the surface of the colloidal system
  10. 21. pounds per square inch
  11. 22. positively charged particle
  12. 23. they transform materials into gold
  13. 24. non-malleable
  14. 28. combination of acid and bases
  15. 29. negatively charged element
Down
  1. 1. turns blue litmus paper to red
  2. 2. study of matter and the changes it undergoes
  3. 6. use of filtering materials
  4. 8. positively charged element
  5. 9. heat is absorbed
  6. 10. average kinetic energy of the gas particles
  7. 11. spaced occupied by the gas particles
  8. 12. zero charged particle
  9. 14. it penetrates the wall of the colloidal system
  10. 17. charged elements
  11. 20. force exerted by the gas molecules
  12. 23. homogeneous mixture of both solid
  13. 25. dispersing medium
  14. 26. chemical abstract society
  15. 27. malleable