Answer :
Final answer:
The activity series of metals organizes elements by reactivity, guiding predictions of single-replacement reactions based on their relative positions in the series.
Explanation:
Activity Series of Metals:
The activity series of metals is organized in decreasing order of reactivity. This series helps predict single-replacement reactions by determining if an element can displace another based on its reactivity. For example, zinc can displace copper in a reaction but not magnesium.
Example:
If we consider the reaction:
Zn(s) + CuSO4(aq) → ZnSO4(aq) + Cu(s)
This reaction occurs because zinc (Zn) is higher in the activity series than copper (Cu) and can displace it.
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