500 prompts matching "The alkali metals and the halogens as families"
Exam practice: Lattice energy and the Born-Haber cycle
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Explain back: The alkanols, alkanals and alkanones distinguished
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Practice set: The alkanoic acids and the alkanoates
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Quiz me: The refinery fractions and their boiling ranges
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Explain back: Thermal and catalytic cracking compared
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Exam practice: The products of complete and of incomplete combustion
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Spot my mistake: Assuming every fuel burns to carbon dioxide and water alone
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Practice set: Soapless detergents and how they differ from soap
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Calculation practice: Calculating the yield of soap from a given mass of oil
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Quiz me: Natural dyes and synthetic dyes compared
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Explain back: The chromophore, and why a dye is coloured
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Exam practice: Mordants and the fixing of a dye
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Calculation practice: Calculating the mass of iron lost to corrosion
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Real-life Nigeria: Oil spillage and remediation in the Niger Delta
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Explain back: Chlorination and the alternatives to it
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Practice set: Ion exchange and the softening of water
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Explain back: The setting and hardening of cement
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Real-life Nigeria: The Nigerian cement industry and its growth
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Quiz me: The three kinds of radiation and their properties
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Practice set: Half-life and the decay curve
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