Limestone - Sedimentary rock made from calcium carbonate, Calcium oxide (quicklime) - Chemical formed when calcium carbonate is heated, Calcium hydroxide solution - Chemical name for limewater, Cement - Formed from limestone heated with clay, Mortar - Mixture of cement and sand, Concrete - Mixture of cement, sand and crushed rock, CaO - Formula of Qucklime, Thermal decomposition - Name of the process occuring when limestone is heated, Calcium hydroxide - Calcium oxide + water -->, Carbon dioxide - Gas that makes limewater cloudy,

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