500 prompts matching "Assigning oxidation numbers in compounds and in ions"
Chemistry at work: Separation work in Nigerian laboratories
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Teach me: Crystallisation, and how it purifies a solid
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Spot my mistake: Using simple distillation on liquids with close boiling points
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Calculation practice: Reading a distillation temperature curve
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Chemistry at work: Distillation in the Nigerian refining industry
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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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Chemistry at work: Analytical chemistry as a career in Nigeria
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Teach me: The subatomic particles and the charge each carries
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Spot my mistake: Thinking isotopes of an element react differently
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Calculation practice: Calculating relative atomic mass from isotope abundances
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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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Calculation practice: Deducing valency from a given configuration
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Real-life Nigeria: Why some elements react vigorously and others hardly at all
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Chemistry at work: Electron configuration and the design of new materials
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Spot my mistake: Writing a formula without balancing the charges
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Calculation practice: Working out relative molecular mass from a formula
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Chemistry at work: The international agreement behind chemical symbols
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Spot my mistake: Altering subscripts in order to balance an equation
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