500 prompts matching "Describing limestone as the reducing agent"
Exam practice: The fractional distillation of crude oil
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Real-life Nigeria: Distillation as practised locally in Nigeria
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Project task: Building a simple distillation set-up
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Chemistry at work: Distillation in the Nigerian refining industry
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Explain back: The Rf value and what it tells you
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Practice set: Sublimation as a method of separation
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Exam practice: Magnetic separation and the use of a separating funnel
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Spot my mistake: Reading a chromatogram without marking the solvent front
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Calculation practice: Calculating an Rf value from measurements
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Project task: Separating ink colours with paper chromatography
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Chemistry at work: Analytical chemistry as a career in Nigeria
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Quiz me: The nucleus and what it contains
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Practice set: Working out the particles present in a given atom
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Calculation practice: Calculating relative atomic mass from isotope abundances
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Real-life Nigeria: Radioactive isotopes and their uses in Nigeria
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Chemistry at work: The historical models of the atom compared
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Explain back: The octet rule and chemical stability
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Exam practice: Ionisation and the formation of cations and anions
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Real-life Nigeria: Why some elements react vigorously and others hardly at all
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Project task: Modelling electron arrangement with counters
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