The decomposition of calcium carbonate CaCO3 typically occurs through a process called thermal decomposition or calcination. This involves heating the calcium carbonate to high temperatures, causing it to break down into its constituent elements. The conditions required for the decomposition of calcium carbonate are:1. High temperature: The decomposition of calcium carbonate usually occurs at temperatures above 840C 1544F . However, the exact temperature required may vary depending on the presence of impurities and other factors.2. Absence of moisture: The presence of moisture can hinder the decomposition process, so it is essential to ensure that the calcium carbonate is dry before heating.When calcium carbonate undergoes thermal decomposition, the following products are formed:1. Calcium oxide CaO : Also known as quicklime or burnt lime, calcium oxide is a white, caustic, alkaline crystalline solid. It is a widely used chemical compound with various applications, such as in the production of cement, as a soil conditioner, and in the manufacture of glass and ceramics.2. Carbon dioxide CO2 : A colorless, odorless gas, carbon dioxide is released as a byproduct of the decomposition reaction. It is a greenhouse gas and plays a significant role in various natural processes, such as photosynthesis and the carbon cycle.The balanced chemical equation for the decomposition of calcium carbonate is:CaCO3 s CaO s + CO2 g This indicates that one mole of solid calcium carbonate decomposes to produce one mole of solid calcium oxide and one mole of gaseous carbon dioxide.