crossword 3

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Across
  1. 1. group 17 elements
  2. 4. gain electrons
  3. 7. the corrosion of iron
  4. 9. a fine solid that is formed by a chemical reaction involving liquids or gases
  5. 12. salt with water of crystallisation
  6. 15. complete dissociation
  7. 17. the reaction that acid reacts with base to form salt and water
  8. 19. a substance that reduces another substance and is itself oxidised
Down
  1. 2. a term represented by roman numeral in word formula
  2. 3. salt without water of crystallisation
  3. 5. a substance can react with both acids and bases
  4. 6. the ease of atoms to lose or gain electrons
  5. 8. A reaction in which a more reactive element will displace a less reactive element from its compound
  6. 10. partial dissociation
  7. 11. group 1 elements
  8. 13. a mixture of two or more metals
  9. 14. lose electrons
  10. 16. proton acceptor
  11. 18. proton donor
  12. 20. soluble base