500 prompts matching "The solubility curve and what it shows"
Practice set: Decantation, and when it is appropriate
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Exam practice: Evaporation to dryness and its limitations
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Explain back: Fractional distillation and the fractionating column
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Spot my mistake: Reading a chromatogram without marking the solvent front
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Real-life Nigeria: Radioactive isotopes and their uses in Nigeria
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Spot my mistake: Giving an ion the same configuration as its parent atom
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Real-life Nigeria: Why some elements react vigorously and others hardly at all
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Chemistry at work: Electron configuration and the design of new materials
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Practice set: Writing the formulae of simple binary compounds
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Spot my mistake: Writing a formula without balancing the charges
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Chemistry at work: How the periodic table came to be arranged as it is
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Explain back: Covalent bonding and the sharing of electrons
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Chemistry at work: Metallic bonding and the sea of electrons
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Real-life Nigeria: Hydrogen bonding and the behaviour of water
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Chemistry at work: Structure and the design of Nigerian building materials
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Real-life Nigeria: The gas laws in Nigerian tyres and cylinders
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Practice set: Molar volume and its value at s.t.p.
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Spot my mistake: Using the wrong value of R for the units given
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Exam practice: Where hard water helps, and where it hinders
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Spot my mistake: Treating every kind of hardness with the same method
Act as my SS1 Chemistry tutor. Show me a worked answer on treating every kind of hardness