250 prompts matching "Chemistry at work: How Mendeleev's table predicted undiscovered elements"
Exam practice: Identifying the species oxidised in a reaction
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Exam practice: The common oxidising and reducing agents and their tests
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Practice set: Density, melting point and hardness across the metals
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Spot my mistake: Assuming every metal is hard and dense
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Practice set: Extraction by electrolysis
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Exam practice: The extraction of iron in the blast furnace
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Spot my mistake: Proposing carbon reduction for a very reactive metal
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Practice set: The chemical behaviour of metals and non-metals compared
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Exam practice: The halogens as a family of non-metals
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Spot my mistake: Assuming all non-metals are gases
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Spot my mistake: Describing a non-metal oxide as basic
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Practice set: The electrolysis of brine and the products it gives
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Exam practice: The electrolysis of molten and of aqueous compounds compared
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Practice set: Non-metals and their compounds reviewed
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Spot my mistake: Omitting the sign of an enthalpy change
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Exam practice: Solubility product and sparingly soluble salts
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Spot my mistake: Proposing boiling as a cure for permanent hardness
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Practice set: The greenhouse effect and global warming
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Exam practice: Ozone depletion and its causes
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Practice set: Chemical equilibrium reviewed
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