A student reacts insoluble iron hydroxide with dilute sulfuric acid to make a soluble salt. After stirring, no solid can be seen in mixture X, but some solid remains in mixture Y.
Suggest which mixture is ready for filtration and give a reason for your answer.
88 exam-style questions on AQA GCSE Chemistry 4.2 Reactions of acids, covering 4.2.1a Reactions of acids with metals, 4.2.1b Redox in acid-metal reactions, 4.2.2 Neutralisation of acids and salt production, 4.2.3 Soluble salts, 4.2.4 The pH scale and neutralisation, 4.2.5a Titrations, 4.2.5b Calculating quantities in titrations, and 4.2.6 Strong and weak acids. Each one has a worked solution and a mark scheme showing where the marks go.