The equation Cu + 2HgCl2 -> CuCl2 + 2Hg

  1. Detailed information about the equation Cu + 2HgCl2 -> CuCl2 + 2Hg:

The above chemical equation describes the reaction between copper (Cu) and mercury(II) chloride (HgCl2) to form copper(II) chloride (CuCl2) and mercury (Hg). This is an element transformation reaction because mercury(II) chloride has a stronger oxidizing property than copper.

  1. Reaction conditions:
  • The reaction usually occurs at room temperature.
  1. Reaction process:
  • First, copper reacts with mercury(II) chloride. During this process, copper is oxidized from an oxidation state of 0 to +2, while mercury is reduced from an oxidation state of +2 to 0.
  • The result is the formation of copper(II) chloride and mercury.
  1. Occurring phenomena:
  • When the reaction occurs, the initial brown-red copper will gradually disappear.
  • Mercury(II) chloride, initially white, will be replaced by green copper(II) chloride.
  • Metallic silver-colored mercury will appear.

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