chemical reactions and equations.

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Across
  1. 2. Type of reaction in which the reduction and oxidation takes place simultaneously.
  2. 4. Gas present in closed chip packets.
  3. 11. Type of reaction in which heat energy is absorbed.
  4. 13. One or group of atoms replaced by another group of atoms.
  5. 14. Type of reaction in which a single substance turns into 2 or more substances.
  6. 15. coating a metal with zinc to prevent corrosion.
Down
  1. 1. type of reaction in which 2 or more substances join to form a single substance.
  2. 3. Type of reaction in which heat energy is evolved.
  3. 5. oxidation of oils or fats resulting in bad taste and smell.
  4. 6. Eating up of metals as a result of exposure to moisture and oxygen.
  5. 7. agent which helps in Substance which loses hydrogen but gains oxygen.
  6. 8. Process in which one or more subsatnces react to form new substances.
  7. 9. shorthand notation of actually occuring chemical reactions, with help of symbols and formulae.
  8. 10. agent which helps in Substance which loses oxygen but gains hydrogen.
  9. 12. Known as the king of acids