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Text File  |  1992-09-02  |  288b  |  8 lines
  1. A chemical reaction in which a less reactive
  2. element is replaced in a compound by a more
  3. reactive one. For example, the addition of
  4. powdered zinc to a solution of copper(II)
  5. sulphate displaces copper metal, which can be
  6. detected by its characteristic colour (see
  7. electrochemical series).
  8.