He totoka meha-kore ka hua ake i te tauhohenga o ētahi matū i rō mehanga. Hei tauira, mēnā ka whakaranua te mehanga pākawa ota konumatā (Pb(NO3)2) me te mehanga konurehu kahautawa (KI), ka huatoka mai te konumatā kahautawa (PbI2), he kōwhai te tae.
An insoluble solid resulting from the reaction of two substances in a solution. For example, if a solution of lead nitrate (Pb(NO3)2) is mixed with potassium iodide (KI), lead iodide (PbI2) precipitates as a bright yellow solid.