222 prompts matching "Exam practice: Empirical and molecular formula from composition"
Exam practice: The reactions of the alkanoic acids
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Exam practice: The uses of the common plastics
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Calculation practice: Working out the repeating unit from a polymer structure
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Exam practice: The uses of each petroleum fraction
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Chemistry at work: The petrochemicals made from oil and gas
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Exam practice: Converting ammonia into nitrogenous fertiliser
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Calculation practice: Calculating the mass of fertiliser from a mass of ammonia
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Calculation practice: Calculating the mass of iron from a mass of ore
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Exam practice: A full SS2 Chemistry paper under examination conditions
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Calculation practice: Writing and using the equilibrium constant expression
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Calculation practice: Calculating output and efficiency for a plant
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Practice set: The formation of a covalent bond in a simple molecule
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Practice set: Balancing a redox equation by half-equations
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Practice set: Extraction by electrolysis
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Practice set: Finding the concentration of an unknown acid
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Practice set: The stages of municipal water treatment
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Practice set: Chemical equilibrium reviewed
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Practice set: Turning pig iron into steel in the converter
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Practice set: The cement industry in Nigeria
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Practice set: Nuclear chemistry at SS2 level reviewed
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