Unit flashcards
Unit 4: Electrochemistry — one card for every lesson
Unit 4 overview: Electrochemistry
Electrochemistry Tap to flipUnit 4 overview: Electrochemistry
Unit 4 overview — CO-ORDINATED SCIENCES: Electrochemistry — 1 topic and 6 lessons. Work through the lessons in order, then use each lesson's Key terms and Common mistakes tabs to revise.TopicLessons4.1 Electrochemistry4.1.1 Electrolysis Principles4.1.2 Electrolysis of Molten Compounds4.1.3 Electrolysis of…
Open the lessonElectrolysis Principles
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4.1.1 Electrolysis Principles — CO-ORDINATED SCIENCES notes: Describe electrolysis and the key terms of an electrolytic cell, and predict what forms at each electrode (HT only for the detailed charge transfer).DefinitionDefinition Electrolysis is the breaking down of an ionic compound,…
Open the lessonElectrolysis of Molten Compounds
Electrochemistry Tap to flipElectrolysis of Molten Compounds
4.1.2 Electrolysis of Molten Compounds — CO-ORDINATED SCIENCES notes: Explain why molten ionic compounds conduct and are decomposed by electricity, describe the electrolysis of lead(II) bromide, and predict products at each electrode.ElectrolysisElectrolysis Electrolysis uses an electric current to break down…
Open the lessonElectrolysis of Aqueous Sodium Chloride and Dilute Sulfuric Acid
Electrochemistry Tap to flipElectrolysis of Aqueous Sodium Chloride and Dilute Sulfuric Acid
4.1.3 Electrolysis of Aqueous Sodium Chloride and Dilute Sulfuric Acid — CO-ORDINATED SCIENCES notes: Predict and explain the products at each electrode when concentrated aqueous sodium chloride and dilute sulfuric acid are electrolysed, and describe how to test for them.hydrogen…
Open the lessonElectrolysis of Aqueous Solutions
Electrochemistry Tap to flipElectrolysis of Aqueous Solutions
4.1.4 Electrolysis of Aqueous Solutions — CO-ORDINATED SCIENCES notes: Predict the products at the anode and cathode when aqueous solutions are electrolysed with inert electrodes, by considering all ions present.Ions from the compoundIons from the compound The dissolved compound supplies…
Open the lessonIonic Half Equations
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4.1.5 Ionic Half Equations — CO-ORDINATED SCIENCES notes: Write balanced ionic half equations for the reactions at the cathode and anode during electrolysis, and identify each as oxidation or reduction (HT only).oxidation reduction oil rigoxidation reduction definitions exampleschlorine reduction half…
Open the lessonHydrogen-Oxygen Fuel Cells
Electrochemistry Tap to flipHydrogen-Oxygen Fuel Cells
4.1.6 Hydrogen-Oxygen Fuel Cells — CO-ORDINATED SCIENCES notes: Describe how a hydrogen-oxygen fuel cell works and compare it with a petrol engine.FuelFuel a substance that releases energy when burned.Fuel cellFuel cell an electrochemical cell in which a fuel donates electrons…
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