Quelpr
2 marksPeriod 3: Sodium to Argon

CAPE Chemistry Unit 1 · 2016 · Paper 2 · Question 3(b)(ii)

The reactions of the oxides of magnesium and phosphorous with water are to be summarized in Table 2.

Write the equation which represents the reaction of water with P₄O₁₀.

This question uses a figure or table from the paper — you'll see it when you practise.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 3(a)(i)Explain, in terms of structure and bonding, why aluminium has a higher melting point than sodium[2 marks]
  2. 3(a)(ii)Explain, in terms of structure and bonding, why silicon has the highest melting point in the period[2 marks]
  3. 3(a)(iii)Explain, in terms of structure and bonding, why sulfur melts at a higher temperature than phosphorous.[3 marks]
  4. 3(b)(i)Complete Table 2 by describing the reaction of EACH oxide with water and suggesting a pH value for the resulting liquid.[2 marks]
  5. 3(c)(i)Write equations to show what happens when EACH of the following chlorides reacts with water: SiCl₄[2 marks]
  6. 3(c)(ii)Write equations to show what happens when EACH of the following chlorides reacts with water: AlCl₃[2 marks]

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