Quelpr
5 marksPeriod 3: Sodium to Argon

CAPE Chemistry Unit 1 · May/June 2019 · Paper 2 · Question 3(c)(i)

Describe an experimental method with expected results to determine the acid-base nature of the following three Period 3 chlorides: NaCl, MgCl2, and SiCl4.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 3(a)(i)Write the equation, including state symbols, for the first ionization energy of magnesium.[2 marks]
  2. 3(a)(ii)Explain why there is a general increase in the first ionization energies across the period from sodium to argon.[2 marks]
  3. 3(a)(iii)Explain why the first ionization energy of magnesium is greater than that of aluminium.[2 marks]
  4. 3(b)Write a balanced equation to show the reaction between water and EACH of Na2O and SO3.[4 marks]
  5. 3(c)(ii)Write a balanced equation to show the reaction between water and EACH of MgCl2 and SiCl4.[4 marks]
  6. 3(d)(i)Define the term 'transition element'.[1 mark]
  7. 3(d)(ii)List THREE characteristic properties of transition elements other than forming coloured compounds.[3 marks]
  8. 3(d)(iii)State the colour of the ions B and C.[2 marks]
  9. 3(d)(iv)Account for the fact that unlike Cu2+ compounds, Zn2+ compounds are normally colourless.[5 marks]

More practice: the rest of this paper · more Period 3: Sodium to Argon questions · all CAPE Chemistry Unit 1 past papers