500 prompts matching "Extraction by electrolysis, and when it is necessary"
Exam practice: The reactions of alkalis with acids and with ammonium salts
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Teach me: What an indicator is, and how it works
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Teach me: What a titration is, and why it is done
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Practice set: The end point, and how it is recognised
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Chemistry at work: The sources of error in a titration, and how to reduce them
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Practice set: Coke and the uses it is put to in industry
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Real-life Nigeria: Coal mining at Enugu and its history
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Real-life Nigeria: Isomerism, and why it matters
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Spot my mistake: Saying the particles themselves melt when a solid melts
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Spot my mistake: Confusing mass number with relative atomic mass
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Spot my mistake: Confusing evaporation with boiling
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Spot my mistake: Changing a formula instead of a coefficient when balancing
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Quiz me: Avogadro's number and what it counts
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Spot my mistake: Leaving out the oxidation state where it is needed
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Spot my mistake: Forgetting to convert pressure units before calculating
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Spot my mistake: Confusing a strong acid with a concentrated one
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Spot my mistake: Reading a group trend as though it were a period trend
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Spot my mistake: Confusing temporary hardness with permanent hardness
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Teach me: What electrolysis is
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Spot my mistake: Confusing the anode with the cathode
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