Here's a breakdown:

* Single Displacement Reaction: A reaction where a more reactive element displaces a less reactive element from a compound.

Example:

* Zinc reacting with copper sulfate solution:

* Equation: Zn(s) + CuSO₄(aq) → ZnSO₄(aq) + Cu(s)

* Explanation: Zinc (Zn) is more reactive than copper (Cu). It displaces the copper from the copper sulfate solution, forming zinc sulfate and solid copper.

Key Points:

* Reactivity Series: The reactivity of metals is determined by their tendency to lose electrons. A more reactive metal will more readily lose electrons and displace a less reactive metal from a compound.

* Predicting Reactions: You can use a reactivity series (like the electrochemical series) to predict whether a single displacement reaction will occur.

Let me know if you'd like more examples or want to explore the reactivity series in more detail!