Redox

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Across
  1. 2. a substance that reduces another substance during a redox reaction
  2. 5. the name given to the process that takes place when metals and alloys are chemically attacked by oxygen
  3. 7. the chemical reaction by which biological cells release the energy stored in glucose for use by the cell or the body
  4. 8. loss oxygen/gain electron/reduce of oxidation number
  5. 11. a reaction involving both reduction and oxidation
Down
  1. 1. a reaction in which a more reactive metals displace a less reactive one
  2. 3. a number given to show whether an element has been oxidised or reduced
  3. 4. a chemical reaction in which a substance reacts with oxygen
  4. 6. gain oxygen/loss electron/increase of oxidation number
  5. 9. oxidation number of Cl in Cl2
  6. 10. oxidation number of S in SO2