`Limestone 0.0 / 5 ? ChemistryThe limestone cycleGCSEAQA Created by: EliseCeriCreated on: 17-04-15 11:13 What is Limestone made from? Calcium Carbonate 1 of 19 What is the symbol for Calcium Carbonate? CaCO3 2 of 19 What can linestone be used to make? Calcium oxide and Cement 3 of 19 How to you make concrete? Mix sand, cement, aggregate and water together 4 of 19 What happens to Calcium Carbonate when heated? It decomposes to make calcium oxide and Carbon Dioxide 5 of 19 What is thermal decomposition? Breaking down by heating 6 of 19 What happens to metal carbonate when heated? It decomposes to produce metal oxide and carbon dioxide 7 of 19 What happens when Carbonates react with Acid? they produce salt, water and carbon dioxie 8 of 19 What is Limestone damaged by? Acid rain 9 of 19 How do we test for Carbon dioxide? Limewater- it will turn cloudy 10 of 19 Whats the first step of the limestone reaction cycle? Thermal decomposition of Calcium carbonate (CaCO3) produces calcium oxide and carbon dioxide 11 of 19 What is the balanced symbol equation for the first step of the reaction cycle? CaCO3 ----> CaO + CO2 12 of 19 What is the second step of the limestone reaction cycle? Calcium Oxide reacts with water to make Calcium Hydroxide 13 of 19 Whats the symbol for Calcium Hydroxide? Ca(OH)2 14 of 19 What is the balanced symbol equation for the second step of the reaction cycle? CaO + H20 ----> Ca(OH)2 15 of 19 What is the third step of the limestone reaction cycle? Calcium Hydroxide (Ca(OH)2) reacts with Carbon dioxide (C02) to produce Calcium Carbonate and water 16 of 19 What is the balanced symbol equation for the third step of the reaction cycle? Ca(OH)2 + CO2 ----> CaCO3 + H20 17 of 19 How do you make Cement? Heat limestone and clay in a kiln 18 of 19 How do you make mortar? Mix cement and sand in water 19 of 19
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