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
11–20 of 66 · Normal
Question 11
3 marks · Normal
Answer and see the solution →Group 1 metal oxides behave differently from most other metal oxides when mixed with water.
Explain, using examples, which metal oxides form alkalis when dissolved in water.
Question 12
4 marks · Normal
Answer and see the solution →The table below lists the reactants in several experiments. Complete the table by stating the salt and water produced for each reaction between an acid and a metal oxide.
Reactions of acids with metal oxides Acid Metal oxide Salt formed Water formed? Sulfuric acid Copper(II) oxide Hydrochloric acid Iron(III) oxide Nitric acid Zinc oxide Question 13
1 mark · Normal
Answer and check →Which of the following equations shows the products formed when potassium hydroxide reacts with nitric acid?
- A.KOH(aq) + HNO3(aq) → KNO3(aq) + H2O(l)
- B.KOH(aq) + HNO3(aq) → KNO2(aq) + H2(g)
- C.KOH(aq) + HNO3(aq) → KOH(s) + HNO3(aq)
- D.KOH(aq) + HNO3(aq) → K2O(aq) + NO2(g)
Question 14
2 marks · Normal
Answer and see the solution →Explain why the reaction between an acid and a metal hydroxide is classified as a neutralisation reaction.
Question 15
4 marks · Normal
Answer and see the solution →Answer the following about soluble and insoluble metal oxides.
(a)[1 mark]Name one metal oxide that is soluble in water.
(b)[1 mark]Write the chemical equation for its reaction with water.
(c)[1 mark]State the product that makes the resulting solution an alkali.
(d)[1 mark]Explain why most other metal oxides do not form alkalis when mixed with water.
Question 16
3 marks · Normal
Answer and see the solution →Hydrochloric acid reacts with sodium hydroxide in a neutralisation reaction.
Explain, using what happens to the ions in this reaction, why this process is classified as a neutralisation reaction.
Question 17
2 marks · Normal
Answer and see the solution →State the general word equation for the reaction of an acid with a carbonate.
Question 18
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 19
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 20
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.