250 prompts matching "The alkali metals and the halogens as families"
Explain back: The allotropes shown by some non-metals
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Real-life Nigeria: The non-metals essential to Nigerian agriculture
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Explain back: The preparation and properties of chlorine
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Practice set: Making sulphur dioxide in the laboratory and testing it
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Calculation practice: Calculating the volume of a gas from a given mass
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Practice set: The electrolysis of brine and the products it gives
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Exam practice: The electrolysis of molten and of aqueous compounds compared
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Real-life Nigeria: Linking bonding, structure and properties together
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Explain back: The strength of an acid and the degree of ionisation
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Practice set: Amphoteric substances and how they behave
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Exam practice: The hydrolysis of salts and the pH that results
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Real-life Nigeria: Buffer solutions and where they matter
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Quiz me: The standard solution and how one is prepared
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Practice set: The apparatus of volumetric analysis and its correct use
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Chemistry at work: The accuracy demanded of an analytical chemist
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Quiz me: Exothermic and endothermic changes distinguished
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Explain back: The standard enthalpy of formation
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Practice set: The standard enthalpies of combustion and of neutralisation
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Exam practice: The energy profile diagram and activation energy
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Real-life Nigeria: Fuels and their heating values in Nigeria
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