An industrial chemist is analyzing a liquid waste stream, Solution Q, which is suspected to contain a dilute mineral acid. The liquid has already been shown to conduct electricity.
Devise an experiment, other than measuring conductivity or using indicators, to demonstrate another characteristic chemical property of acids using a sample of Solution Q. Describe the reagent used and the expected observation.
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.