REAKSIYaHOI MUOVIZA, reaksiyahoi khimiyavii bayni moddahoi sodda va murakkabro guyand, ki dar natijai onho atomhoi moddai sodda ba atomhoi yake az elementhoi moddai murakkab ivaz meshavand.
Ge + SiS12 — Si + G eS12 2p + SiS12 = Si + 2pS12
Dar reaksiyai yakum atomhoi mis dar khloridi mis ba atomhoi ohan va dar reaksiyai duyum ba atomhoi ruh ivaz shudaand.