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Unit 7: Acids, Bases and Salts — one card for every lesson
Unit 7 overview: Acids, Bases and Salts
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Unit 7 overview — CO-ORDINATED SCIENCES: Acids, Bases and Salts — 2 topics and 6 lessons. Work through the lessons in order, then use each lesson's Key terms and Common mistakes tabs to revise.TopicLessons7.1 The Characteristic Properties of Acids and…
Open the lessonProperties of Acids and Bases
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7.1.1 Properties of Acids and Bases — CO-ORDINATED SCIENCES notes: Describe the reactions and indicator colours of acids and bases.weak acid hydrogen concentrationKey ideasacid + metal → salt + hydrogen, e.g. Mg + 2HCl → MgCl2 + H2.acid + base…
Open the lessonThe Ions in Acids and Alkalis
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7.1.2 The Ions in Acids and Alkalis — CO-ORDINATED SCIENCES notes: Describe acids and alkalis in terms of the ions they release, write the ionic equation for neutralisation and link the pH scale to the concentration of hydrogen ions.hydrogen hydroxide…
Open the lessonClassifying Oxides
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7.1.3 Classifying Oxides — CO-ORDINATED SCIENCES notes: Classify oxides as acidic, basic, amphoteric (HT only) or neutral from the element involved and from how they react with acids and bases.DefinitionDefinition An oxide is a compound made of oxygen combined with…
Open the lessonPreparing Soluble Salts
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7.2.1 Preparing Soluble Salts — CO-ORDINATED SCIENCES notes: Name salts from their reactants and describe how to prepare a pure, dry sample of a soluble salt using an excess of a solid or by titration with an alkali.DefinitionDefinition A salt…
Open the lessonPreparing Insoluble Salts
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7.2.2 Preparing Insoluble Salts — CO-ORDINATED SCIENCES notes: Describe how to make a pure, dry sample of an insoluble salt by precipitation (HT only) and write the equation for the reaction.group2 ion precipitation testsWhat happensWhat happens When two solutions containing…
Open the lessonHydrated and Anhydrous Salts
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7.2.3 Hydrated and Anhydrous Salts — CO-ORDINATED SCIENCES notes: Explain the difference between hydrated and anhydrous salts, using copper(II) sulfate to describe how the change is carried out, reversed and used as a test for water.Hydrated saltHydrated salt When some…
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