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4 marksFirst Row Transition Elements

CAPE Chemistry Unit 1 · May/June 2022 · Paper 2 · Question 3(d)

Properties of calcium and iron.

Discuss the values of the physical properties (melting point, density, atomic radius) shown in Table 5 in terms of the structure and bonding of the elements calcium and iron.

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Other parts of this question

  1. 3(a)(i)Explain how the boiling point of the halogens changes going down the group.[3 marks]
  2. 3(a)(ii)Explain how the oxidizing power of the halogens changes going down the group.[3 marks]
  3. 3(b)(i)Write a balanced equation for the reduction of H2SO4 to SO2 by Br^-.[2 marks]
  4. 3(b)(ii)Write a balanced equation for the reduction of H2SO4 to H2S by I^-.[2 marks]
  5. 3(b)(iii)Write a balanced equation for the reaction between H2SO4 and Cl^-.[2 marks]
  6. 3(c)Complete the table to show how both AgNO3(aq) and NH3(aq) can be used to distinguish between solutions of NaCl(aq) and NaBr(aq), specifying the test and…[5 marks]
  7. 3(e)(i)Insert arrows into EACH of the boxes in Figure 1 to show the electronic configuration (3d and 4s orbitals) of Fe3+, Mn2+, Cr, and Ni2+.[4 marks]
  8. 3(e)(ii)Considering the electronic configurations given for Cu+ (1s2 2s2 2p6 3s2 3p6 3d10) and Cu2+ (1s2 2s2 2p6 3s2 3p6 3d9), discuss the fact that some copper(I)…[5 marks]

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