Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Section
Reacting acids with bases
19 practice questions
Practice questions
11–19 of 19
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 · Hard
Answer and see the solution →State the general word equation for the reaction between an acid and a metal oxide. Your answer should refer to the type of products formed.
Question 18
5 marks · Hard
Answer and see the solution →Lead(II) oxide reacts with sulfuric acid in a laboratory experiment.
(a)[1 mark]Name the type of chemical reaction that takes place.
(b)[2 marks]Give the names of the products formed in this reaction.
(c)[1 mark]Write a word equation for the reaction.
(d)[1 mark]Give a chemical symbol equation for the reaction.
Question 19
2 marks · Hard
Answer and see the solution →Explain why the reaction between an acid and a metal oxide is called a neutralisation reaction. Use your knowledge of ions to support your answer.