Which three types of reactions yield a product that is a chemically bonded combination of reactants?

Oxidation, synthesis, and polymerization reactions can each produce a product in which reactant particles are chemically bonded together. In a synthesis reaction, for example, two or more reactants combine to form one compound; polymerization joins small molecules into a larger molecule. Decomposition instead breaks a compound apart, so choices that include it do not fit.

AI-written and checked against the verified answer.