500 prompts matching "The formation of an ionic bond in sodium chloride"
Exam practice: Thermoplastics and thermosetting plastics compared
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Chemistry at work: Plastic waste and the disposal problem in Nigerian cities
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Exam practice: The link between the reactivity series and the method used
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Explain back: The reactions at each level of the blast furnace
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Spot my mistake: Naming coke as the substance that removes the impurities
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Project task: Researching the Ajaokuta and Delta steel plants
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Chemistry at work: The Nigerian iron and steel industry
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Explain back: The electrolytic extraction of aluminium
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Chemistry at work: Aluminium smelting and the power it demands
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Explain back: The trend in reactivity and in oxidising power
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Exam practice: The laboratory preparation and the tests for chlorine
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Real-life Nigeria: The halogens and their compounds in daily use
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Explain back: Sulphur trioxide and the contact process
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Chemistry at work: Carbon dioxide in the Nigerian bottling and fire-safety trades
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Explain back: Permanent hardness and the compounds responsible
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Chemistry at work: Hardness and the Nigerian water supply industry
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Exam practice: The NPK rating and how to read it
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Project task: Comparing the fertiliser brands on sale locally
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Teach me: The amines and their basic character
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Explain back: Amino acids and the peptide link
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