Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Section
Making insoluble salts
19 practice questions
Practice questions
1–3 of 3 · Hard
Question 1
2 marks · Hard
Answer and see the solution →Write the balanced ionic equation, including state symbols, for the formation of lead(II) sulfate as a precipitate from aqueous solutions.
Question 2
5 marks · Hard
Answer and see the solution →Copper(II) carbonate is an insoluble salt produced by a precipitation reaction between aqueous copper(II) sulfate and sodium carbonate.
(a)[2 marks]Write the full balanced chemical equation, including state symbols, for this reaction.
(b)[1 mark]State the formula of the spectator ions in this reaction.
(c)[2 marks]Explain why these ions are considered spectator ions.
Question 3
2 marks · Hard
Answer and see the solution →Describe how you could make an insoluble salt of calcium sulfate using solutions of soluble salts.