Limestone and the Limestone Cycle 0.0 / 5 ? ChemistryThe limestone cycleGCSEAQA Created by: SunsetCreated on: 07-05-13 17:55 What are the products of the thermal decomposition of Calcium Carbonate? Calcium Oxide and Carbon Dioxide 1 of 8 How is concrete made? Cement is mixed with sand, water and aggregate and a slow chemical reaction occurs 2 of 8 Why does acid rain dissolve limestone? The acid reacts with calcium carbonate producing CO2 and a salt. The salt dissolves in water so the amount of limestone decreases 3 of 8 What is quicklime? Calcium Oxide 4 of 8 What is reinforced concrete? Concrete with steel rods to add extra support to a structure. 5 of 8 What is the symbol equation for the reaction between calcium hydroxide and carbon dioxide? Ca(OH)2 + CO2 ---> CaCO3 + H2O 6 of 8 What is produced when you add water to calcium oxide? Calcium Hydroxide 7 of 8 Why is calcium hydroxide spread on acidic fields? Calcium Hydroxide is an alkali so it neutralises acids improving the pH of the soil for growing crops 8 of 8
Comments
No comments have yet been made