redox reaction

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Across
  1. 2. used to indicate the oxidation number of an element in the formula of a compound (2 word)
  2. 3. an decrease in oxidation number of an atom or ion during a reaction
  3. 8. a chemical reaction in which a substance reacts with oxygen - the reaction is exothermic
Down
  1. 1. positive ions always flows to
  2. 2. oxidised organic material - bad smell
  3. 3. the chemical reaction by which biological cells realease the energy stored in glucose use by the cell or the body; the reaction is exothermic and produces carbon dioxide and water as the chemical by-products
  4. 4. name of a reaction where there is no transfer oxygen are now included
  5. 5. an increase in oxidation number of an atom or ion during a reaction
  6. 6. when metals and alloys are chemically attacked by oxygen, water or any other substance found in their immediate environment
  7. 7. negative ions always flows to