Question

agno₃ + nacl → agcl + nano₃ is an example of:
a metathesis reaction
a decomposition reaction

Explanation:

A metathesis reaction (also called double - displacement reaction) involves the exchange of ions between two compounds. In the reaction $\ce{AgNO_{3} + NaCl -> AgCl + NaNO_{3}}$, the $\ce{Ag+}$ from $\ce{AgNO_{3}}$ and $\ce{Na+}$ from $\ce{NaCl}$ exchange their anions ($\ce{NO_3^-}$ and $\ce{Cl^-}$ respectively). A decomposition reaction is when a single compound breaks down into two or more simpler substances, which is not the case here.

Answer:

a metathesis reaction