A-LevelChemistryAtoms, molecules and stoichiometryMay/June 2019Paper 3 Q214 Marks
In Question 1 you measured the volume of carbon dioxide produced by a metal carbonate, MCO3, in order to identify M. In Question 2 you will identify another Group 2 metal, Q, by using a gravimetric method. When Group 2 carbonates are heated they decompose. QCO3(s) → QO(s) + CO2(g) FA 3 is the metal carbonate, QCO3.
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