Unit flashcards
Unit 9: Metals — one card for every lesson
Unit 9 overview: Metals
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Unit 9 overview — CO-ORDINATED SCIENCES: Metals — 3 topics and 10 lessons. Work through the lessons in order, then use each lesson's Key terms and Common mistakes tabs to revise.TopicLessons9.1 Properties, Uses and Alloys of Metals9.1.1 Properties of Metals9.1.2…
Open the lessonProperties of Metals
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9.1.1 Properties of Metals — CO-ORDINATED SCIENCES notes: Compare the physical and chemical properties of metals and non-metals and explain them using bonding.element classification metals nonmetals metalloidsMetals and non-metalsMost elements are metals, and a small number (metalloids or semimetals) show…
Open the lessonUses of Metals
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9.1.2 Uses of Metals — CO-ORDINATED SCIENCES notes: Link the uses of aluminium and copper to their properties.AluminiumAluminium is a reactive metal, widely used because it has a low density and resists corrosion.It forms a thin layer of aluminium oxide…
Open the lessonAlloys
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9.1.3 Alloys — CO-ORDINATED SCIENCES notes: Explain what an alloy is, why alloys are harder than pure metals, and give examples of common alloys and their uses.DefinitionDefinition An alloy is a mixture of a metal with one or more other…
Open the lessonReactivity Series
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Describe how metals react with water, steam and dilute acids.Metal + water → metal hydroxide + hydrogen (reactive metals).Metal + steam → metal oxide + hydrogen (e.g. Mg + H2O → MgO + H2).Metal + acid → salt + hydrogen;…
Open the lessonExplaining Reactivity
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9.2.2 Explaining Reactivity — CO-ORDINATED SCIENCES notes: Explain the reactivity of metals in terms of their tendency to lose electrons, and use displacement reactions in solution to work out an order of reactivity (HT only).metal positive ions delocalised electronsForming ionsForming…
Open the lessonRusting of Iron
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9.2.3 Rusting of Iron — CO-ORDINATED SCIENCES notes: State the conditions needed for iron to rust, describe an experiment to show this, and explain how barrier methods prevent rusting.The reactionThe reaction Rusting is the reaction of iron with both oxygen…
Open the lessonGalvanising and Sacrificial Protection
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9.2.4 Galvanising and Sacrificial Protection — CO-ORDINATED SCIENCES notes: Explain how a more reactive metal protects iron by sacrificial protection and galvanising, using the loss of electrons to justify which metals are suitable (HT only).1Attach a more reactive metalAttach a…
Open the lessonExtraction of Metals
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9.3.1 Extraction of Metals — CO-ORDINATED SCIENCES notes: Describe how the extraction method depends on the metal's position in the reactivity series.oxidation reduction oil rig1Metals less reactive than carbon (Zn, Fe, Cu) are extracted by reduction with carbon; metals more…
Open the lessonExtraction of Iron From Hematite
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9.3.2 Extraction of Iron From Hematite — CO-ORDINATED SCIENCES notes: Describe how iron is extracted from hematite in the blast furnace, including the raw materials, the reactions in each zone, and the role of limestone.Raw materialsRaw materials Hematite (iron ore,…
Open the lessonExtraction of Aluminium From Bauxite
Metals Tap to flipExtraction of Aluminium From Bauxite
9.3.3 Extraction of Aluminium From Bauxite — CO-ORDINATED SCIENCES notes: Explain why aluminium is extracted by electrolysis rather than by carbon, and describe the electrolysis of aluminium oxide dissolved in molten cryolite, including the electrode reactions (HT only).The oreThe ore…
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