500 prompts matching "Variable oxidation state, and why it arises"
Chemistry at work: How Mendeleev's table predicted undiscovered elements
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Spot my mistake: Choosing distillation where filtration would do
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Quiz me: The physical properties that make water unusual
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Quiz me: Separating the components of air
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Spot my mistake: Treating air as a compound rather than a mixture
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Calculation practice: Calculating the volume of oxygen used in a reaction
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Chemistry at work: The uses of the gases separated from air
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Spot my mistake: The errors most often made in second-term SS1 Chemistry
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Calculation practice: A mixed set of second-term chemistry calculations
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Teach me: What electrolysis is
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Chemistry at work: Redox reactions in Nigerian industry
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Spot my mistake: Describing a covalent compound as conducting when molten
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Calculation practice: Calculating the heat evolved in a reaction
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Teach me: What the rate of a reaction means
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Quiz me: Measuring the rate of a reaction
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Spot my mistake: Saying a catalyst is used up during a reaction
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Calculation practice: Calculating an average rate from experimental data
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Teach me: The allotropes of carbon
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Teach me: The oxides of carbon
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Spot my mistake: Confusing the two oxides of carbon in a test
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