278 prompts matching "How a soap molecule lifts away dirt"
Chemistry at work: Gas behaviour in industrial processes
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Practice set: Molar volume and its value at s.t.p.
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Exam practice: The ideal gas equation and the molar gas constant
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Spot my mistake: Using the wrong value of R for the units given
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Real-life Nigeria: Graham's law of diffusion and the uses made of it
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Chemistry at work: Gas calculations in Nigerian industry
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Practice set: Water as a universal solvent
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Exam practice: Solubility and the factors that affect it
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Spot my mistake: Confusing a solution with a suspension
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Real-life Nigeria: The water cycle and its importance
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Chemistry at work: The laboratory tests for water
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Practice set: Removing permanent hardness from water
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Exam practice: Where hard water helps, and where it hinders
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Spot my mistake: Treating every kind of hardness with the same method
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Real-life Nigeria: Water pollution and its sources in Nigeria
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Chemistry at work: Water quality work in Nigeria
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Practice set: The preparation of a named alkali
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Exam practice: The reactions of alkalis with acids and with ammonium salts
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Spot my mistake: Calling every base an alkali
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Chemistry at work: The uses of bases in Nigerian industry
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