3 marksGroup II Elements
CAPE Chemistry Unit 1 · 2011 · Paper 2 · Question 3(e)
List THREE uses of calcium carbonate.
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Practise this questionOther parts of this question
- 3(a)Write the ionic equation of such an element, M, to show the formation of the ion present.[1 mark]
- 3(b)Use the information in Table 1 to account for the differences in reactivity of the elements shown.[3 marks]
- 3(c)(i)Comment on the solubility of the sulphate of radium in water.[1 mark]
- 3(c)(ii)Write the balanced equation for the thermal decomposition of the nitrate of radium, Ra(NO3)2.[3 marks]
- 3(d)(i)State the steps that should be taken in the investigation of the differences in solubility of the sulphates of magnesium, calcium and barium.[3 marks]
- 3(d)(ii)List the names of the reagents that may be used in the investigation.[2 marks]
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