Lime, CaO(s), and carbon dioxide gas are the products of thermal decomposition of limestone, solid calcium carbonate, Thermal decomposition of limestone (calcium carbonate). Calcium oxide (quicklime) is prepared by decomposing calcium carbonate in a large kiln at 825C to 1000C. Calcium oxide is among the most widely used chemicals in the world, with annual consumption measured in the hundreds of millions of tons. Some of the CaO output is used in the steel industry, and much of the remainder is used to make "slaked lime," Ca(OH)2, by reaction with water. Thermal refers to heat. The reaction occurs at high mperature.) Write the equation. Use the lowest possible coefficients. Be sure the pecify states such as (aq) or (s). If a box is no eeded, leave it blank.)