500 prompts matching "Fractional crystallisation and the uses made of it"
Exam practice: Converting between Celsius and Kelvin
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Project task: Demonstrating a gas law with simple apparatus
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Project task: The treatment a town's water passes through before supply
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Project task: Testing household substances for alkalinity
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Real-life Nigeria: Titration in Nigerian quality control
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Exam practice: The products obtained from coal
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Exam practice: The test that distinguishes carbon dioxide
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Exam practice: Naming simple alkanes, alkenes and alkynes
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Project task: Plotting a solubility curve from given data
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Real-life Nigeria: First aid for the common laboratory accidents
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Spot my mistake: Treating chemistry as a subject only about dangerous substances
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Teach me: What a chemical industry does
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Calculation practice: Calculating relative atomic mass from isotopic abundance
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Chemistry at work: Why chemists use one shared symbolic language
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Calculation practice: Calculating masses that combine in a fixed ratio
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Spot my mistake: Using molar mass where molar volume is required
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Calculation practice: Deducing a formula from a systematic name
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Teach me: What Boyle's law states
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Spot my mistake: Using Celsius in a Charles's law calculation
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Teach me: What stoichiometry means
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