What is the difference between displacement and double displacement reactions? Write equations for these reactions.

Answers (1)

When an element displaces another element from its compound, a displacement reaction occurs.

Example : Fe(s) + CuSO_4(aq) 
ightarrow FeSO_4(aq) + Cu(s)

 Two different atoms or groups of atoms (ions) are exchanged in a double displacement reaction.

Example :Na_2SO_4(aq) + BaCl_2(aq) 
ightarrow BaSO_4(s) + 2NaCl(aq)

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