500 prompts matching "Limiting reagent problems, and how to spot the limit"
Practice set: The trend in ionisation energy down a group
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Spot my mistake: Reading a group trend as though it were a period trend
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Chemistry at work: How Mendeleev's table predicted undiscovered elements
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Practice set: Fractional distillation and what it separates
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Spot my mistake: Choosing distillation where filtration would do
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Real-life Nigeria: Separation methods in Nigerian salt and oil production
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Spot my mistake: Confusing temporary hardness with permanent hardness
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Calculation practice: Calculating the volume of oxygen used in a reaction
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Chemistry at work: The uses of the gases separated from air
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Practice set: Acids, bases and salts reviewed
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Practice set: The electrolysis of acidified water
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Practice set: Drawing dot-and-cross diagrams
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Spot my mistake: Describing a covalent compound as conducting when molten
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Practice set: Enthalpy change and its sign convention
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Calculation practice: Calculating the heat evolved in a reaction
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Spot my mistake: Saying a catalyst is used up during a reaction
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Real-life Nigeria: Charcoal and coal in Nigerian use
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Practice set: Carbonates and hydrogencarbonates
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Real-life Nigeria: Carbon dioxide in Nigerian fire extinguishers and drinks
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Chemistry at work: Pollution control and environmental careers in Nigeria
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