500 prompts matching "Chemistry at work: Hardness and the Nigerian water supply industry"
Exam practice: The laboratory preparation of hydrogen
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Practice set: The properties and uses of oxygen
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Exam practice: Combustion and the conditions it requires
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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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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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Exam practice: The factors that determine which ion is discharged
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Spot my mistake: Confusing the anode with the cathode
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Teach me: Oxidation and reduction in terms of oxygen
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Exam practice: Identifying the oxidising and the reducing agent in a reaction
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Spot my mistake: Assigning an oxidation number to the wrong atom
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Exam practice: Metallic bonding and the properties it gives
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Teach me: Exothermic and endothermic reactions
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Exam practice: Heat of reaction, of neutralisation and of combustion
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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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Practice set: Amorphous carbon and the forms it takes
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Real-life Nigeria: Charcoal and coal in Nigerian use
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Practice set: Carbonates and hydrogencarbonates
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