Chemistry 0.0 / 5 ? ChemistryC12.1 - C12.5GCSEAQA Created by: JessicahenryCreated on: 13-04-16 13:22 What is limestone mainly made of? Calcium carbonate 1 of 15 What is limestone used for? A building material and calcium oxide to make cement 2 of 15 When does calcium carbonate decompose? When heated to make calcuim oxide and carbon dioxide 3 of 15 When carbonates react with acids what is produced? A salt, water and carbon dioxide 4 of 15 What does carbon dioxide turn limewater? Cloudy 5 of 15 What is calcium hydroxide solution called? Limewater 6 of 15 Why is limestone damaged by acid rain? Because the calcium carbonate in the limestone reacts with the acid in the rain 7 of 15 What does thermal decomposition of calcuim carbonate produce? Calcium oxide and carbon dioxide 8 of 15 When calcium oxide reacts with water what is produced Calcium hydroxide 9 of 15 What is calcium hydroxide used for? Because its an alkali it can be used to neutralise acids 10 of 15 When calcuim hydroxide reacts with carbon dioxide what is produced? Calcium carbonate 11 of 15 How do you make cement? Limestone is mixed with clay and heated strongly in a kiln which is then ground up to make a fine powder 12 of 15 How is mortar made? By mixing cement and sand with water 13 of 15 How is concrete made? By mixing aggregate with cement, sand and water 14 of 15 What is a disadvantage of quarrying limestone? It can have negative impacts on the environment and on people living near to the quarries 15 of 15
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