wassc chem

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Across
  1. 2. insoluble solid formed when solutions are mixed
  2. 6. apparatus for measuring a fixed volume accurately
  3. 9. minimum energy needed for a successful collision
  4. 14. compound containing only carbon and hydrogen
  5. 17. negative electrode where reduction occurs
  6. 19. substance that changes colour at the end point
  7. 21. decomposition of a compound by electric current
  8. 22. heat content of a system at constant pressure
  9. 23. curved surface of a liquid read at eye level
  10. 24. maximum mass of solute in 100 g of solvent at a temperature
  11. 27. process of determining concentration by gradual addition
  12. 28. graduated tube with stopcock used to deliver titrant
Down
  1. 1. reaction that absorbs heat from the surroundings
  2. 3. substance that destroys skin or materials on contact
  3. 4. compounds with same molecular formula but different structure
  4. 5. closely agreeing titre values
  5. 7. conclusion drawn from an observation
  6. 8. unsaturated hydrocarbon with one double bond
  7. 10. loss of electrons by a substance
  8. 11. reaction that releases heat to the surroundings
  9. 12. information noted using the senses during an experiment
  10. 13. protective eyewear worn in the laboratory
  11. 15. substance that speeds up a reaction without being used up
  12. 16. particles meeting to react
  13. 18. large molecule made from many small repeating units
  14. 20. obtaining pure crystals from a solution
  15. 25. solution holding maximum solute at that temperature
  16. 26. liquid that passes through filter paper