Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Chapter
Acids, Bases and Salt Preparations
156 practice questions
Topics covered
- Reactions of acids18 practice questions
- Reacting acids with bases19 practice questions
- Reacting acids with carbonates19 practice questions
- Salt preparations19 practice questions
- Making soluble salts (except sodium, potassium and ammonium salts)19 practice questions
- Making sodium, potassium and ammonium salts18 practice questions
- Making insoluble salts19 practice questions
- Theories of acids and bases19 practice questions
Practice questions
41–50 of 156
Question 41
3 marks · Easy
Answer and see the solution →Observations when adding dilute acids to various carbonates Carbonate Acid used Gas seen Other products Zinc carbonate Hydrochloric acid Yes Zinc chloride, water Potassium carbonate Sulfuric acid Yes Potassium sulfate, water Study the table above. Answer the following:
(a)[1 mark]What word equation best fits the reactions shown?
(b)[1 mark]Name the gas that is always formed.
(c)[1 mark]What other product, besides a salt and gas, is always formed?
Question 42
1 mark · Easy
Answer and see the solution →Write the balanced chemical equation for the reaction of lithium carbonate with nitric acid.
Question 43
3 marks · Easy
Answer and see the solution →Potassium carbonate is added to an excess of dilute hydrochloric acid.
(a)[1 mark]Name the salt formed.
(b)[1 mark]Name the gas produced.
(c)[1 mark]Write the chemical formula for all products.
Question 44
2 marks · Easy
Answer and see the solution →Write the balanced ionic equation for the reaction between carbonate ions and hydrogen ions. State the names of all products.
Question 45
1 mark · Easy
Answer and see the solution →Write the word equation that shows what is always formed (other than the salt) when a carbonate reacts with an acid.
Question 46
2 marks · Normal
Answer and see the solution →State the general word equation for the reaction of an acid with a carbonate.
Question 47
4 marks · Normal
Answer and see the solution →(a)[2 marks]Write a balanced chemical equation for the reaction between calcium carbonate and nitric acid.
(b)[2 marks]Write a balanced chemical equation for the reaction between magnesium carbonate and sulfuric acid.
Question 48
3 marks · Normal
Answer and see the solution →Explain, with reference to ions, why carbon dioxide and water are formed when a carbonate reacts with an acid. Write the ionic equation for this reaction.
Question 49
4 marks · Normal
Answer and see the solution →Observations from adding dilute acids to metal carbonates Carbonate Acid used Colour before Colour after Gas formed Other changes Copper(II) carbonate sulfuric acid green blue yes solution forms Sodium carbonate hydrochloric acid white colourless yes solution forms Calcium carbonate nitric acid white colourless yes solid disappears Use the table above.
State the general word equation for the reaction between an acid and a carbonate, based on the observations.
Question 50
1 mark · Normal
Answer and check →Which of the following is the balanced chemical equation for the reaction of zinc carbonate with hydrochloric acid?
- A.\ce{ZnCO3(s) + 2HCl(aq) -> ZnCl2(aq) + CO2(g) + H2O(l)}
- B.\ce{ZnCO3(s) + HCl(aq) -> ZnCl2(aq) + CO2(g)}
- C.\ce{ZnCO3(s) + 2HCl(aq) -> ZnCl2(aq) + CO2(g)}
- D.\ce{ZnCO3(s) + HCl(aq) -> ZnCl(aq) + CO2(g) + H2O(l)}