A chemical reaction that has the general formula of AB->A + B is best classified as a (blank) reaction. synthesis
polymerization
decomposition
oxidation
replacement

What is the blank?

Decomposition

Explanation:

Synthesis reaction is a type of chemical reaction in which two reactants combine to give a single product.

Polymerization is a reaction where small units called as monomers joine together to form a large molecule called as polymer.

A decomposition reaction occurs when one reactant breaks down into two or more products. This can be represented by the general equation: AB → A + B.

Oxidation is a reaction where a substance loses electrons and undergo an increase in oxidation state.

Replacement reaction is a type of chemical reaction in which more reactive element displaces the less reactive element from its salt solution.