500 prompts matching "Molar mass and how it is obtained"
Chemistry at work: How Mendeleev's table predicted undiscovered elements
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Spot my mistake: Confusing temporary hardness with permanent hardness
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Exam practice: Combustion and the conditions it requires
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Spot my mistake: Confusing the anode with the cathode
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Exam practice: Metallic bonding and the properties it gives
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Practice set: Enthalpy change and its sign convention
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Spot my mistake: Giving an exothermic change a positive enthalpy
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Practice set: Amorphous carbon and the forms it takes
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Real-life Nigeria: Carbon dioxide in Nigerian fire extinguishers and drinks
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Practice set: Soil pollution and the effects it has
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Exam practice: Acid rain, its formation and its effects
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Spot my mistake: Confusing the greenhouse effect with ozone depletion
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Chemistry at work: Pollution control and environmental careers in Nigeria
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Quiz me: Soaps and detergents, and how they clean
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Practice set: Carbon and its compounds reviewed
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Exam practice: A full SS1 Chemistry paper under examination conditions
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Exam practice: Evaporation to dryness and its limitations
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Spot my mistake: Using simple distillation on liquids with close boiling points
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Spot my mistake: Reading a chromatogram without marking the solvent front
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Exam practice: Isotopy, with examples of isotopes
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