500 prompts matching "Chemistry at work: How Mendeleev's table predicted undiscovered elements"
Spot my mistake: Writing an inference where only an observation is asked for
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Practice set: Carrying out a titration to concordant results
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Spot my mistake: The presentation errors that lose practical marks
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Practice set: Gas volume and stoichiometry calculations
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Exam practice: Concentration, dilution and titration calculations
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Spot my mistake: Losing marks by dropping units mid-calculation
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Spot my mistake: Forgetting to balance the equation before using mole ratios
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Practice set: The characteristic chemistry of Groups 1, 2, 7 and 0
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Exam practice: The transition elements and their distinguishing features
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Real-life Nigeria: Using the table to answer an unseen question
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Practice set: A full theory paper under examination conditions
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Exam practice: A full objective paper under examination conditions
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Spot my mistake: The time-management mistakes candidates make
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Practice set: The past questions most worth working through
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Exam practice: A final mixed paper before the examination
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Practice set: Writing s, p and d electron configurations
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Exam practice: The configuration of an ion compared with that of its atom
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Practice set: The trend in electronegativity
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Practice set: Dative covalent bonding and where it occurs
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Exam practice: Concentration expressed in moles per cubic decimetre
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