500 prompts matching "Chemistry at work: Why ionic compounds conduct only when molten or dissolved"
Exam practice: Applying Le Chatelier's principle to industrial processes
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Calculation practice: Finding an equilibrium concentration from K
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Exam practice: Lattice energy and the Born-Haber cycle
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Calculation practice: Calculating enthalpy change from enthalpies of formation
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Teach me: The functional group, and why it governs behaviour
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Practice set: The alkanoic acids and the alkanoates
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Calculation practice: Deducing a structure from percentage composition
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Exam practice: Thermochemistry reviewed
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Spot my mistake: The errors most often made in first-term SS3 Chemistry
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Real-life Nigeria: A practical planning task across the first term's work
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Practice set: Reforming, isomerisation and octane number
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Spot my mistake: Assuming every fuel burns to carbon dioxide and water alone
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Calculation practice: Calculating the heat of combustion of a fuel
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Exam practice: The action of soap in hard water
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Spot my mistake: Expecting a detergent to fail in hard water as soap does
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Calculation practice: Calculating the yield of soap from a given mass of oil
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Explain back: The chromophore, and why a dye is coloured
I have just studied the chromophore, and why a dye is coloured in my SS3 Chemistry class.
Calculation practice: Calculating the quantity of dye needed for a given fabric
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Exam practice: Galvanising, sacrificial protection and cathodic protection
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Calculation practice: Calculating the mass of iron lost to corrosion
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