This chemical equation represents the reaction of Ca(OH)2 (calcium hydroxide) with CaCO3 (calcium carbonate) to form Ca(HCO3)2 (calcium bicarbonate) and CaCl2 (calcium chloride), as well as the precipitation of AgCl (silver chloride).

Ca(OH)2 + CaCO3 -> Ca(HCO3)2 + CaCl2 + AgCl

This reaction involves the exchange of ions between the compounds, resulting in the formation of new compounds as well as a precipitate.