Back تفكك Arabic Disocijacija (hemija) BS Dissociació química Catalan لێکھەڵوەشان (کیمیا) CKB Disociace Czech Dissociation (kemi) Danish Dissoziation (Chemie) German Διάσταση (χημεία) Greek Disociación (química) Spanish Dissotsiatsioon (keemia) Estonian
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Dissociation of Gomberg's dimer
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Dissociation diagram of phosphoric acid
Dissociation in chemistry is a general process in which molecules (or ionic compounds such as salts, or complexes) separate or split into other things such as atoms, ions, or radicals, usually in a reversible manner. For instance, when an acid dissolves in water, a covalent bond between an electronegative atom and a hydrogen atom is broken by heterolytic fission, which gives a proton (H+) and a negative ion. Dissociation is the opposite of association or recombination.