Here's a breakdown:
* One element (usually a metal or a nonmetal) reacts with a compound.
* The element replaces one of the elements in the compound.
* This results in the formation of a new element and a new compound.
General form:
A + BC → AC + B
Example:
* Zinc (Zn) reacts with copper(II) sulfate (CuSO₄) to form zinc sulfate (ZnSO₄) and copper (Cu).
Zn + CuSO₄ → ZnSO₄ + Cu
Key features of single-replacement reactions:
* Involve two reactants and two products.
* One reactant is an element and the other is a compound.
* The element replaces one of the elements in the compound.
* The reaction must be energetically favorable for it to occur.
Single-replacement reactions are often used in:
* Metallurgy: To extract metals from their ores.
* Electrochemistry: To generate electric current.
* Organic chemistry: To introduce functional groups into organic molecules.
