redox reaction

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Across
  1. 3. a reaction involving both reduction and oxidation
  2. 4. substance that reduce itself during redox reaction and oxidised during the reaction
  3. 6. a chemical reaction that a substance react with oxygen
  4. 7. hydrochloric acid
  5. 8. a term used to describe oxidised organic material, involve in bad smell
  6. 9. the name given to the reaction that take place when metal and alloys are chemically attacked by ocygen, water,, or anyother substance found in their immidiate environment
  7. 10. element from the central region of periodic table
Down
  1. 1. a reaction which a more active element displaces less reactive element from a solution of its salt
  2. 2. a number given to show whether an element has oxidised or reduced
  3. 5. the chemical reaction by which the biological cells release the energy stored in glucouse for use by cell on the body