* The Reactivity Series: Metals are arranged in a reactivity series based on their tendency to lose electrons and form positive ions. Metals higher in the series are more reactive.
* Displacement Reactions: When a more reactive metal is placed in a solution of a less reactive metal's salt, it will displace the less reactive metal from the solution.
* Copper and Iron: In this case, iron is higher in the reactivity series than copper. This means that iron is more likely to lose electrons and form ions than copper.
Therefore, if you were to place a piece of copper in a solution of iron sulphate, no reaction would occur because copper cannot displace iron from its salt.
Summary: The reaction you are describing is a single displacement reaction, and for it to occur, the metal in the solution must be less reactive than the metal being added. Since copper is less reactive than iron, no reaction occurs.
