Types of Chemical Reactions

ChemistryUpdated October 25, 2026

Classification and general formulas for basic chemical reactions.

Synthesis: A + B -> AB (e.g., 2Mg + O2 -> 2MgO).

Decomposition: AB -> A + B (e.g., 2H2O -> 2H2 + O2).

Combustion: Hydrocarbon + O2 -> CO2 + H2O. Single

Replacement: AX + B -> BX + A.

Double Replacement: AX + BY -> AY + BX.

Neutralization: HA + B(OH) -> AB + H2O.