Edexcel•GCSE•Chemistry
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Chemical Changes
Acids, bases, neutralisation, electrolysis, and obtaining metals
Practice 38 subtopics in Chemical Changes. All questions match the Edexcel GCSE specification.
About Chemical Changes
Chemical Changes is a key topic in the Edexcel GCSE Chemistryspecification. This topic covers acids, bases, neutralisation, electrolysis, and obtaining metals.
Master all 38 subtopics below with unlimited AI-generated questions. Each subtopic page includes sample questions and the ability to generate unlimited practice questions with detailed solutions.
All Subtopics (38)
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Acids and basesThe pH scalepH and hydrogen ion concentration (HT)IndicatorsUniversal indicatorNeutralisation reactionsAcids and metal oxidesAcids and metal hydroxidesAcids and metal carbonatesAcids and metalsMaking saltsSoluble and insoluble saltsCrystallisationStrong and weak acids (HT)Concentration vs strength (HT)Reactivity seriesReactions of metals with waterReactions of metals with dilute acidsDisplacement reactionsMetal displacement from solutionsOxidation as gain of oxygenReduction as loss of oxygenRedox reactionsOxidation as loss of electrons (HT)Reduction as gain of electrons (HT)Ionic half equations (HT)ElectrolysisElectrolytesElectrodesAnode and cathodeElectrolysis of molten compoundsElectrolysis of aqueous solutionsProducts at electrodesElectrolysis of sodium chloride solutionIndustrial uses of electrolysisHalf equations at electrodes (HT)Extraction of aluminiumPurification of copper
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