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4.1 Acids

4.1 Acids

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Question 118

Hydrochloric acid is a strong acid used in many industrial and laboratory processes.

The formulae of four ions are shown in the table below.

H+H^+H+H−H^-H−Cl+Cl^+Cl+Cl−Cl^-Cl−

Identify the formula of the ion from the table that is responsible for making the hydrochloric acid solution acidic.

[1]
Markscheme

4.1 Acids Questions

  1. GCSE
  2. /Chemistry
  3. /4.1 Acids

276 exam-style questions on Edexcel GCSE Chemistry 4.1 Acids, covering 4.1.1 Acids, alkalis and the pH scale, 4.1.2 Hydrogen ion concentration and pH, 4.1.3 Dilute and concentrated, weak and strong acids, 4.1.4 Bases, alkalis and the reactions of acids, 4.1.5 Chemical tests for hydrogen and carbon dioxide, 4.1.6 Neutralisation as a reaction of acids with bases, 4.1.7 Preparing soluble salts, and 4.1.8 Solubility rules and preparing insoluble salts. Each one has a worked solution and a mark scheme showing where the marks go.

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