500 prompts matching "The removal of impurities as slag"
Exam practice: Identifying the oxidising and the reducing agent in a reaction
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Real-life Nigeria: Rusting as an everyday redox process in Nigeria
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Explain back: Covalent bonding and the electron pairs atoms share
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Exam practice: Metallic bonding and the properties it gives
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Spot my mistake: Describing a covalent compound as conducting when molten
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Project task: Modelling ionic and covalent structures
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Spot my mistake: Giving an exothermic change a positive enthalpy
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Calculation practice: Calculating the heat evolved in a reaction
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Exam practice: Catalysts and how they work
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Chemistry at work: The collision theory and what it explains
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Explain back: The structure that gives each allotrope its properties
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Practice set: Amorphous carbon and the forms it takes
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Spot my mistake: Assuming diamond and graphite are different elements
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Exam practice: The laboratory test for carbon dioxide
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Quiz me: Air pollutants and where they come from
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Spot my mistake: Confusing the greenhouse effect with ozone depletion
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Calculation practice: Interpreting pollution measurement data
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Real-life Nigeria: Oil spillage in the Niger Delta
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Quiz me: Soaps and detergents, and how they clean
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Exam practice: Fertilisers and their effect on crop yield
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