Which general equation shows a single-displacement reaction? A. \( A X+B Y \rightarrow A Y+B X \) B. \( A+B X \rightarrow A X+B \) C. \( B X \rightarrow B+X \) D. \( A+Y \rightarrow A Y \)

In a single-displacement reaction, an element replaces another element in a compound. This can be recognized in option A, where \( A \) exchanges places with \( B \) in the compound \( A X \), resulting in new products \( A Y \) and \( B X \). For a real-world application, single-displacement reactions are often seen in the corrosion of metals, where a more reactive metal displaces a less reactive one. For example, when zinc is placed in a copper sulfate solution, zinc displaces copper to form zinc sulfate and copper metal, showcasing this type of reaction in action!