Question

a reaction in which an active element replaces a lesser active element ​

Answer 1

A replacement reaction occurs when elements switch places in compounds. This type of reaction involves ions. Generally, more reactive elements replace less reactive elements. A single replacement reaction occurs when one element replaces another element in one compound.

Answer 2

Answer:

What is a single replacement reaction? A single replacement reaction, sometimes called a single displacement reaction, is a reaction in which one element is substituted for another element in a compound