C1.2 Rocks and building materials 0.0 / 5 ? ChemistryThe limestone cycleGCSEAQA Created by: LauragreeenCreated on: 12-04-17 11:34 What is limestone mainly made from? (name and chemical formula) Calcium carbonate, CaCO3 1 of 6 What is one of the main uses of limestone? Building materials 2 of 6 How is cement made? Powdered limestone is heated with powdered clay 3 of 6 What is produced when we mix cement powder, water, sand and crushed rock? Concrete 4 of 6 What is produced when we heat limestone strongly? What is this reaction called? Calcium oxide + carbon dioxide after thermal decomposition 5 of 6 What can calcium oxide be used for? Building + farm industries 6 of 6
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