134 prompts matching "How a soap molecule lifts away dirt"
Real-life Nigeria: Oxidation in the rusting of Nigerian roofing sheets
Act as my SS2 Chemistry tutor. Show me where oxidation in the rusting of Nigerian roofing
Practice set: Balancing a redox equation by half-equations
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Exam practice: The common oxidising and reducing agents and their tests
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Spot my mistake: Calling the oxidising agent the substance that is oxidised
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Real-life Nigeria: Redox in Nigerian bleaching and water treatment
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Chemistry at work: Redox reactions in batteries and cells
Act as my SS2 Chemistry tutor. Explain which Nigerian jobs and industries depend on redox
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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Real-life Nigeria: Choosing the right metal for a given Nigerian use
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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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Real-life Nigeria: Nigeria's metal deposits and their exploitation
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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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Real-life Nigeria: The non-metals essential to Nigerian agriculture
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Chemistry at work: Metalloids, and where they sit between the two
Act as my SS2 Chemistry tutor. Explain which Nigerian jobs and industries depend on metall
Practice set: Making sulphur dioxide in the laboratory and testing it
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Exam practice: The tests that identify the common non-metal gases
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