250 prompts matching "Predicting formulae and properties from position in the table"
Exam practice: The extraction of iron in the blast furnace
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Real-life Nigeria: Nigeria's metal deposits and their exploitation
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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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Teach me: The electrolytic cell and the parts it is made of
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Exam practice: The electrolysis of molten and of aqueous compounds compared
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Real-life Nigeria: Electroplating and metal purification in Nigeria
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Teach me: Chemical bonding and structure reviewed
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Spot my mistake: The errors most often made in first-term SS2 Chemistry
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Chemistry at work: Preparing a revision plan for the SS2 first term
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Exam practice: The hydrolysis of salts and the pH that results
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Real-life Nigeria: Buffer solutions and where they matter
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Explain back: Primary standards, and what makes a substance suitable
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Exam practice: The procedure for a standard acid-base titration
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Spot my mistake: Rinsing the burette with water before filling it
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Teach me: The mole ratio in a titration calculation
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Exam practice: Finding the concentration of an unknown alkali
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Chemistry at work: The accuracy demanded of an analytical chemist
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Teach me: Enthalpy and the enthalpy change of a reaction
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Exam practice: The energy profile diagram and activation energy
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