500 prompts matching "Chemistry at work: Hardness and the Nigerian water supply industry"
Exam practice: Fertiliser and how it is manufactured in Nigeria
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Spot my mistake: Assuming every chemical plant makes the same kind of product
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Spot my mistake: Choosing decantation where filtration is needed
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Calculation practice: Calculating percentage recovery after a separation
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Practice set: Separating a mixture of two miscible liquids
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Spot my mistake: Using simple distillation on liquids with close boiling points
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Calculation practice: Reading a distillation temperature curve
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Practice set: Sublimation as a method of separation
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Calculation practice: Calculating an Rf value from measurements
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Calculation practice: Calculating relative atomic mass from isotope abundances
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Practice set: Valency deduced from electron configuration
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Calculation practice: Deducing valency from a given configuration
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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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Teach me: What a chemical equation represents
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Practice set: Writing an equation from a described reaction
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Exam practice: Balancing an equation by inspection
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Spot my mistake: Altering subscripts in order to balance an equation
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Calculation practice: Checking that an equation balances by counting atoms
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Practice set: Ionic equations for precipitation reactions
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