Limestone 0.0 / 5 ? ChemistryLimestoneGCSEAQA Created by: lauraCreated on: 24-01-14 20:19 What is Limestone made of? Calcium Carbonate (CaCO3) 1 of 11 When heated what does Limestone thermally decompose into? calcium oxide and carbon dioxide 2 of 11 What does Calcium Carbonate produce when it reacts with acid? Calcium salt, Carbon dioxide and Water 3 of 11 What does Calcium Carbonate produce when it reacts with water? Calcium Hydroxide 4 of 11 What property of calcium hyroxude makes it useful to farmers? It is alkali. Farmers can use it to neutralise acidic soil in field so their crops grow better. 5 of 11 Powdered limestone can also be used. Why might powdered limestone be more favorable compared to calcium hydroxide? It works much faster. 6 of 11 What test can be used to check for carbon dioxide? Add carbon dioxide to a solution of calcium hydroxide and the solution (Limewater) will turn cloudy. 7 of 11 What causes this cloudiness? The Calcium carbonate produced. 8 of 11 What are some uses of limestone? Can be used to make cement, mortar, concrete. 9 of 11 What are the disadvantages of using Limestone? Limestone has to be quarried = noise pollution, dust, disruption of habitats, transport (Pollution and noise), fossil fuels. 10 of 11 Name some +ves of Limestone products? Widely Available, cheap, easy to cut, hard wearing, attractive. 11 of 11
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