500 prompts matching "Chemistry at work: Alkenes in the Nigerian plastics industry"
Calculation practice: Calculating a new volume after a change of pressure
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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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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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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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Exam practice: Neutralisation and the reaction it describes
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Calculation practice: Titration calculations and finding an unknown concentration
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Real-life Nigeria: Salts in Nigerian agriculture and food
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Exam practice: The trend in metallic and non-metallic character
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Calculation practice: Predicting a property from an element's position
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Exam practice: Chromatography and how it works
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Spot my mistake: Choosing distillation where filtration would do
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Teach me: The composition and structure of water
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Practice set: Hard and soft water, and the causes of hardness
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Exam practice: The laboratory preparation of hydrogen
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