The equation NaCI + AgF - > NaF + AgCI is an example of what type of reaction

-single replacement

-decomposition

-combustion

-double replacement

Double replacement. The metal ions have exchanged partners.

"Single replacement" is incorrect. In single displacement, one element displaces another element in a compound.

"Decomposition" is incorrect. In decomposition, a single substance changes into two or more substances.

"Combustion" is incorrect because it usually involves a reaction with oxygen.