Write chemical equations for the reactions taking place where a. Magnesium reacts with dil. Hydrochloric acid. b. Iron reacts with steam. c. Copper is strongly heated in water. 8. Why does the colour of copper sulphate solution change when an iron nail is dipped in it? Write the chemical equation for it.
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a. Mg + 2HCl = MgCl2 + H2
b. 3Fe + 4H2O = Fe3O4 + 4H2
c. Cu + H2O = CuO + H2
The colour of copper sulphate changes when an iron nail is dipped in it because iron displaces copper from copper sulphate solution as iron is more reactive than copper
b. 3Fe + 4H2O = Fe3O4 + 4H2
c. Cu + H2O = CuO + H2
The colour of copper sulphate changes when an iron nail is dipped in it because iron displaces copper from copper sulphate solution as iron is more reactive than copper
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