In a single replacement reaction, what is typically produced?

In a single replacement reaction, one element replaces another element in a compound, resulting in the formation of a new element and a new compound. This reaction can be represented generally by the equation:

[ A + BC \rightarrow AC + B ]

In this equation, element A displaces element B from compound BC, leading to the creation of a new compound AC and the release of element B as a separate entity.

This characteristic is fundamental to single replacement reactions, distinguishing them from other types of reactions, such as synthesis or decomposition reactions. Consequently, the presence of both a new element and a compound is the hallmark of this reaction type, thus making the given answer the correct choice.