From Paper 1: Advanced Inorganic and Physical Chemistry
4(a)4 marks
Describe and explain the trend in thermal stability of the Group 2 carbonates.
From Paper 1: Advanced Inorganic and Physical Chemistry
4(b)3 marks
Describe the observations when concentrated sulfuric acid is added to solid sodium iodide and explain why they differ from those with sodium chloride.
From Paper 3: General and Practical Principles in Chemistry
9*6 marks
Discuss how the type of bonding affects the physical properties of sodium chloride, magnesium, silicon dioxide and iodine.
From Paper 3: General and Practical Principles in Chemistry
156 marks
The enthalpy change for 2NaHCO₃(s) → Na₂CO₃(s) + H₂O(l) + CO₂(g) cannot be measured directly. A student measured:
Na₂CO₃(s) + 2HCl(aq) → 2NaCl(aq) + H₂O(l) + CO₂(g) ΔH₁ = −35.6 kJ mol⁻¹
NaHCO₃(s) + HCl(aq) → NaCl(aq) + H₂O(l) + CO₂(g) ΔH₂ = +27.8 kJ mol⁻¹
Use a Hess cycle to calculate the enthalpy change for the decomposition, and explain why it cannot be measured directly.
From Paper 3: General and Practical Principles in Chemistry
168 marks
Describe a test for each of the following ions and give the positive result: NH₄⁺, SO₄²⁻, CO₃²⁻, Br⁻.
Score 0 / 27 · 0 of 5 marked
This paper is written by Plasmo in the style of the Edexcel A-Level Chemistry exam. It is not a past paper and is not produced or endorsed by the exam board.
Inorganic chemistry and the periodic table Exam Questions: Edexcel A-Level Chemistry | Plasmo