250 prompts matching "The confirmatory tests for the common cations"
Calculation practice: Calculating the yield of a named fraction
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Chemistry at work: The petrochemicals made from oil and gas
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Calculation practice: Calculating the mass of fertiliser from a mass of ammonia
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Exam practice: Mild, medium and high carbon steel, and the use of each
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Calculation practice: Calculating the mass of iron from a mass of ore
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Calculation practice: Calculating the amount remaining after several half-lives
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Chemistry at work: The benefits and the hazards of nuclear chemistry
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Exam practice: The paint and textile industries in Nigeria
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Spot my mistake: Predicting ionic character from electronegativity difference
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Explain back: Malleability and ductility in terms of structure
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Practice set: Giant structures and simple molecular structures compared
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Teach me: Oxidation defined by oxygen, by hydrogen and by electrons
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Quiz me: Recognising oxidation in a given equation
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Practice set: Assigning oxidation numbers in compounds and in ions
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Teach me: Reduction defined, and always paired with oxidation
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Practice set: Balancing a redox equation by half-equations
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Real-life Nigeria: Redox in Nigerian bleaching and water treatment
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Explain back: Why metals conduct heat and electricity
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Spot my mistake: Assuming every metal is hard and dense
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Teach me: Ores, and what extraction means
You are my personal SS2 Chemistry tutor. Teach me ores, and what extraction means, using a