Which two reactions are opposites? synthesis and decomposition single-displacement and double-displacement

synthesis and decomposition

Explanation: Synthesis is a chemical reaction in which two or more than two reactants react together to form a single substance.

Decomposition is a chemical reaction in which a single reactant decomposes to give two or more than two products.

Single displacement reaction is the one which a more reactive element displaces a less reactive element from a solution.

Double displacement reaction is the one which exchange of ions take place.

solute : a solute is a substance that is dissolved in another substance is known as a solvent. it is mixed with a special mixture know as homogeneous mixture.

solvent: a solvent is a substance that dissolved a solute, which results in a solution is known as solvent.

lol idk man i guess u gotta ask bill nye the science guy