MARTYN F. CHILLMAID / SCIENCE PHOTO LIBRARY MARTYN F. CHILLMAID / SCIENCE PHOTO LIBRARY
Displacement reaction in a test tube between iron (II) chloride (FeCl2, in beaker at right) and sodium carbonate (Na2CO3, left). These two salts swap ions during this reaction, forming iron (II) carbonate, which precipitates out of solution, and soluble sodium chloride.
Model release not required. Property release not required.