500 prompts matching "Exam practice: The IUPAC rules for naming straight-chain hydrocarbons"
Real-life Nigeria: The laws of combination at work in Nigerian industry
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Real-life Nigeria: The mole in Nigerian pharmaceutical measurement
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Explain back: Naming compounds of metals with variable valency
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Spot my mistake: Leaving out the oxidation state where it is needed
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Real-life Nigeria: The chemical names behind familiar Nigerian products
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Chemistry at work: Why systematic naming matters in trade and medicine
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Quiz me: The graph of pressure against volume
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Real-life Nigeria: The gas laws in Nigerian diving and gas cylinders
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Quiz me: The terms in the general gas equation
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Spot my mistake: Forgetting to convert pressure units before calculating
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Chemistry at work: Empirical and molecular formulae from composition data
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Real-life Nigeria: The alkali metals and the halogens as families
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Quiz me: Filtration, and when it is the right method
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Quiz me: The physical properties that make water unusual
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Quiz me: Separating the components of air
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Spot my mistake: Treating air as a compound rather than a mixture
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Quiz me: Symbols, formulae and equations reviewed
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Spot my mistake: The errors most often made in second-term SS1 Chemistry
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Spot my mistake: Confusing the anode with the cathode
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Spot my mistake: Assigning an oxidation number to the wrong atom
Act as my SS1 Chemistry tutor. Show me a worked answer on assigning an oxidation number to