500 prompts matching "Sachet and bottled water quality in Nigeria"
Practice set: Making an insoluble salt by mixing two solutions
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Exam practice: Neutralisation and the reaction it describes
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Spot my mistake: Choosing the wrong preparation method for a given salt
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Quiz me: Groups and periods, and what each tells you
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Practice set: The trend in ionisation energy down a group
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Spot my mistake: Reading a group trend as though it were a period trend
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Calculation practice: Predicting a property from an element's position
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Quiz me: Filtration, and when it is the right method
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Practice set: Fractional distillation and what it separates
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Exam practice: Chromatography and how it works
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Spot my mistake: Choosing distillation where filtration would do
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Project task: Separating a mixture at home
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Spot my mistake: Confusing temporary hardness with permanent hardness
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Quiz me: Separating the components of air
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Practice set: The properties and uses of oxygen
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Exam practice: Combustion and the conditions it requires
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Spot my mistake: Treating air as a compound rather than a mixture
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Calculation practice: Calculating the volume of oxygen used in a reaction
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Quiz me: Symbols, formulae and equations reviewed
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Practice set: Acids, bases and salts reviewed
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