Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Unit
Inorganic Chemistry
869 practice questions
Topics covered
- The Alkali Metals85 practice questions
- The Halogens86 practice questions
- Gases in the Atmosphere86 practice questions
- Reactivity Series163 practice questions
- Extraction and Uses of Metals128 practice questions
- Acids, Alkalis and Titrations83 practice questions
- Acids, Bases and Salt Preparations156 practice questions
- Chemical Tests68 practice questions
Practice questions
271–280 of 359 · Easy
Question 271
3 marks · Easy
Answer and see the solution →Potassium hydroxide is added to an acid in excess. Answer the following questions.
(a)[2 marks]Explain why the reaction is described as a neutralisation reaction.
(b)[1 mark]Write the general word equation for this type of reaction.
Question 272
2 marks · Easy
Answer and see the solution →A student wants to make an alkaline solution by dissolving a metal oxide in water.
(a)[1 mark]Name one metal oxide that will produce an alkali when dissolved in water.
(b)[1 mark]Write a chemical equation for its reaction with water.
Question 273
1 mark · Easy
Answer and see the solution →State the general word equation for the reaction between a metal hydroxide and an acid.
Question 274
3 marks · Easy
Answer and see the solution →Hydrochloric acid reacts with magnesium carbonate in an aqueous solution.
(a)[2 marks]Write the balanced chemical equation for this reaction.
(b)[1 mark]Name the salt formed in this reaction.
Question 275
2 marks · Easy
Answer and see the solution →A student adds sodium carbonate to an excess of dilute sulfuric acid in a beaker.
(a)[1 mark]Name all products formed in this reaction.
(b)[1 mark]State the gas produced.
Question 276
2 marks · Easy
Answer and see the solution →Explain, using ions, how carbon dioxide and water are formed when a carbonate reacts with an acid.
Question 277
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 278
1 mark · Easy
Answer and see the solution →Write the balanced chemical equation for the reaction of lithium carbonate with nitric acid.
Question 279
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 280
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.