Displacement reaction. Image 1 of 2. Hand dipping strips of magnesium (left) and copper (right) into a solution of the other's sulphate salt. This is being done to show the relative reactivity of the two metals. The more reactive metal will displace the less reactive one,leading to a colour change. In this case,as magnesium (Mg) is more reactive than copper (Cu),the blue copper sulphate (CuSO4) solution will change to colourless magnesium sulphate (MgSO4). The reaction is: Mg + CuSO4 ---> MgSO4 + Cu For an image of the test tubes after the reaction,see image A500/343 | |
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Crédit: | Science Photo Library / Andrew Lambert Photography |
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