Which of the following best describes a double-replacement reaction? A. One compound splits up, forming two or more elements or new compounds. B. Atoms in one compound switch places with atoms in another compound. C. A lone element takes the place of a different element in a compound. D. Two elements join together to form a new compound.
I believe the correct answer from the choices listed above is option B. A double-replacement reaction happens when atoms in one compound switch places with atoms in another compound. It is a type of chemical reaction where two compounds react, and the positive ions (cation) and the negative ions (anion) of the two reactants switch places. Hope this answers the question.