2. Aluminum

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Across
  1. 2. a large container
  2. 7. not allowing liquid to go through
  3. 12. a form of carbon
  4. 13. insoluble materials in aqueous solution
  5. 14. electrode where oxidation reaction takes place
  6. 16. English name for Si
  7. 17. a mixture of hydrated aluminum oxide
  8. 18. a solution where a salt may dissociate as cation and anion
  9. 20. metal reacts with hydroxy ions
Down
  1. 1. aluminum metal can be oxidized at anode
  2. 3. aluminum oxide
  3. 4. a small piece of material that fits into a hole in order to close it
  4. 5. English name for Cu
  5. 6. make it stronger, improve
  6. 8. English name for Mg
  7. 9. reuse the materials
  8. 10. Na3AlF6
  9. 11. electrode where reduction reaction takes place
  10. 15. not poisonous
  11. 19. oxidation of metals