a chemical reaction that has the general formula of na→(a)n is best classified as a replacement oxidation…

a chemical reaction that has the general formula of na→(a)n is best classified as a replacement oxidation decomposition polymerization synthesis

Answer

In polymerization, monomers (A) combine to form a polymer (A)$_n$. The given general formula nA → (A)$_n$ represents this process.

polymerization