500 prompts matching "Groups and periods, and what each tells you"
Spot my mistake: Filling the 3d sublevel before the 4s
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Chemistry at work: How spectra reveal electronic structure
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Spot my mistake: Describing a polar covalent bond as ionic
Act as my SS3 Chemistry tutor. Show me a worked answer on describing a polar covalent bond
Exam practice: Concentration expressed in moles per cubic decimetre
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Spot my mistake: Using molar volume for a substance that is not a gas
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Chemistry at work: Why the mole underpins all quantitative chemistry
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Spot my mistake: Reading a mole ratio off an unbalanced equation
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Chemistry at work: Stoichiometry in Nigerian chemical manufacturing
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Exam practice: Graham's law of diffusion
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Spot my mistake: Using pressure in millimetres of mercury with R in SI units
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Chemistry at work: Gas law calculations in Nigerian industry
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Exam practice: Solubility expressed in different units
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Spot my mistake: Reading a solubility curve without checking the units
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Chemistry at work: Solution chemistry in Nigerian pharmacy
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Spot my mistake: Assuming pH 7 is neutral at every temperature
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Exam practice: Preparing an insoluble salt by precipitation
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Spot my mistake: Choosing a titration route for an insoluble salt
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Chemistry at work: Salt manufacture as an industry
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Spot my mistake: Assuming every salt solution is neutral
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Spot my mistake: Writing an isomer that is really the same molecule
Act as my SS3 Chemistry tutor. Show me a worked answer on writing an isomer that is really