IGCSE Chemistry

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Across
  1. 5. Process of breaking down glucose
  2. 6. Organic compounds with an OH group attached
  3. 10. Substances with a range of melting and boiling points
  4. 11. Most abundant element in breathable air
  5. 13. Organic compounds which have single bonds only
  6. 14. Process used to remove smaller particles
  7. 16. Substance with a pH value below 7
  8. 17. Large molecules with more than 50 small molecules
  9. 18. Mixture of two or more metals
  10. 19. Number of free electrons in the outer shell
  11. 21. The liquid in which the solute dissolves
  12. 23. Row on a periodic table is called a ..........
  13. 24. Breaking larger chains of molecules into smaller ones
  14. 25. Process in which green plants create glucose
Down
  1. 1. The result of an acid reacting with a base
  2. 2. Solute dissolved in solvent
  3. 3. Used to speed up reactions
  4. 4. Substance with no water chemically attached
  5. 7. Process to kill microbes in water
  6. 8. Makes up approximately 21% of breathable air
  7. 9. A rock that stores water
  8. 12. Group 7 of the periodic table
  9. 15. Measures temperature
  10. 20. Carbon .......... is toxic to humans
  11. 22. Found on the left of the periodic table