Chemisty - Rocks and Building materials 0.0 / 5 ? ChemistryRocks, ores, metals and alloysGCSEAQA Created by: JennyCreated on: 17-05-13 23:42 name some products that are made from limestone? toothpaste, glass, cement and talcon powder 1 of 18 explain thermal decomposition? splitting up a substance by means of heat 2 of 18 what is the word equation for the thermal decomposition of limestone? calcium carbonate + calcium oxide + carbon dioxide 3 of 18 what is the balanced symbol equation for the thermal decomposition of limestone? CaCO3 --> CaO + CO2 4 of 18 what is the word equation for the thermal decomposition of copper carbonate? copper carbonate --> copper oxide + carbon dioxide 5 of 18 what is the balanced symbol equation for the thermal decomposition of copper carbonate? CuCO3 --> CuO + CO2 6 of 18 what is the test for carbon dioxide? pass the gass through limewater, if it turns cloudy/milky then there is limewater present 7 of 18 what are the differences between limestone, cement and concrete? Limestone - found naturally. Cement - a powdered version of limestone. Concrete - made from cement 8 of 18 what are the uses for limestone, concrete and cement? limestone - glass, cement, toothpaste. Cement - used in concrete. Concrete - used in buildings as a material 9 of 18 what is the chemical formula of limestone? CaCO3 10 of 18 what is the chemical formula of calcium hydroxide? Ca(OH)2 11 of 18 what is the chemical formula of calcium oxide? CaO 12 of 18 what is the word equation for the reaction of calcium oxide with water? calcium oxide + water --> calcium hydroxide 13 of 18 what is the balanced symbol equation for the reaction of calcium oxide with water? CaO + H2O --> Ca(OH)2 14 of 18 what is the word equation for the reaction of calcium hydroxide with carbon dioxide? calcium hydroxide + carbon dioxide --> calcium carbonate + water 15 of 18 what is the balanced symbol equation for the reaction of calcium hydroxide with carbon dioxide? Ca(OH)2 + CO2 --> CaCO3 + H2O 16 of 18 what is the word equation for the reaction of magnesium carbonate and hydrochloric acid? magnesium carbonate + hydrochloric acid --> magnesium chloride + water + carbon dioxide 17 of 18 what is the balanced symbol equation for the reaction of magnesium carbonate and hydrochloric acid? MgCO3 + 2HCl --> MgCl2 + H2O + CO2 18 of 18
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