500 prompts matching "The origin and composition of crude oil"
Calculation practice: Calculations on extraction yield and composition
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Spot my mistake: The organic chemistry errors examiners see most often
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Calculation practice: Deducing the identity of a salt from a full test sequence
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Calculation practice: Percentage purity, yield and composition calculations
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Exam practice: Empirical and molecular formula from composition
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Exam practice: The configuration of an ion compared with that of its atom
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Chemistry at work: Periodicity in the design of new materials
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Teach me: The variables that define the state of a gas
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Quiz me: The factors that affect the solubility of a solute
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Calculation practice: Calculating the pH of a strong acid or a strong base
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Calculation practice: Calculating the mass of salt obtainable
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Calculation practice: Estimating the pH of a hydrolysing salt solution
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Real-life Nigeria: Hydrolysis and soil pH in Nigerian farming
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Practice set: The addition reactions of the alkenes
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Calculation practice: Calculating the mass of product in an addition reaction
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Calculation practice: Calculating the yield of an ester
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Calculation practice: Calculating the number of repeating units from molar mass
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Calculation practice: Calculating the percentage of metal in an ore
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Practice set: The removal of impurities as slag
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Calculation practice: Calculating the mass of iron from a mass of haematite
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