225 prompts matching "Energy changes and reaction rates reviewed"
Exam practice: The structures of diamond, graphite and silica
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Real-life Nigeria: Alloys, and the reasons they are made
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Teach me: Oxidation defined by oxygen, by hydrogen and by electrons
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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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Quiz me: Identifying the oxidising agent and the reducing agent
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Explain back: Why oxidation and reduction always occur together
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Exam practice: The common oxidising and reducing agents and their tests
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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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Practice set: Density, melting point and hardness across the metals
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Exam practice: The reactivity series and how it is established
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Teach me: Ores, and what extraction means
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Quiz me: The link between reactivity and the method of extraction
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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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Chemistry at work: Metalloids, and where they sit between the two
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Teach me: The oxides of non-metals and their acidic nature
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Explain back: The preparation and properties of chlorine
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Practice set: Making sulphur dioxide in the laboratory and testing it
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