278 prompts matching "How a soap molecule lifts away dirt"
Chemistry at work: Why systematic naming matters in trade and medicine
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Practice set: The Kelvin scale, and converting to it
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Exam practice: Applying Boyle's law to a described situation
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Spot my mistake: Using Celsius in a Charles's law calculation
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Real-life Nigeria: The gas laws in Nigerian diving and gas cylinders
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Practice set: Applying the general gas equation to a problem
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Exam practice: The ideal gas equation and the gas constant
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Spot my mistake: Forgetting to convert pressure units before calculating
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Real-life Nigeria: Gas behaviour in Nigerian cooking gas cylinders
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Practice set: Calculating the mass of product from the mass of reactant
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Exam practice: Percentage yield, and why it falls short of a hundred
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Spot my mistake: Using an unbalanced equation in a stoichiometry calculation
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Real-life Nigeria: Stoichiometry in Nigerian manufacturing
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Chemistry at work: Empirical and molecular formulae from composition data
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Practice set: The reactions of acids with metals and with carbonates
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Exam practice: The pH scale and what it measures
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Spot my mistake: Confusing a strong acid with a concentrated one
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Real-life Nigeria: Acids and bases in Nigerian food and cleaning
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Practice set: Making an insoluble salt by mixing two solutions
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Exam practice: Neutralisation and the reaction it describes
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