500 prompts matching "Chemistry at work: The Nigerian iron and steel industry"
Exam practice: Evaporation to dryness and its limitations
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Teach me: Crystallisation, and how it purifies a solid
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Exam practice: The fractional distillation of crude oil
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Spot my mistake: Reading a chromatogram without marking the solvent front
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Real-life Nigeria: Radioactive isotopes and their uses in Nigeria
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Teach me: Electron shells and the maximum each can hold
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Spot my mistake: Giving an ion the same configuration as its parent atom
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Teach me: Why chemists use symbols rather than words
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Exam practice: The common radicals and the charges they carry
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Calculation practice: Working out relative molecular mass from a formula
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Calculation practice: Checking the charge balance in an ionic equation
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Exam practice: The properties of Group 1, Group 7 and Group 0
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Calculation practice: Predicting the formula of a compound from group numbers
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Real-life Nigeria: The elements Nigeria mines, and where they sit in the table
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Calculation practice: Predicting a compound's formula from the bonding type
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Real-life Nigeria: The properties ionic and covalent compounds show
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Teach me: The forces that act between molecules
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Teach me: The variables that describe a gas
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Practice set: The pressure law and its graph
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Spot my mistake: Leaving the temperature in Celsius in a gas calculation
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