Chemistry

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Across
  1. 3. stable oxide
  2. 7. Biological cells release the energy stored in glucose for use by the cell or the body
  3. 9. A natural process that converts a refined metal into a more
  4. 10. A decrease in oxidation number of an atom or ion during a reaction
Down
  1. 1. A chemical reaction that takes place between an oxidising substance and a reducing substance
  2. 2. RIG A memory aid for remembering one definition of oxidation and reduction
  3. 3. A chemical reaction in which a substance reacts with oxygen - the reaction is exothermic
  4. 4. Silvery-gray metal that resembles iron
  5. 5. An increase in oxidation number of an atom or ion during a reaction
  6. 6. A term used to describe oxidised organic material
  7. 8. This element has the symbol C