500 prompts matching "Chemistry at work: Recording observations and inferences in the WAEC format"
Practice set: Enthalpy change and its sign convention
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Spot my mistake: Giving an exothermic change a positive enthalpy
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Practice set: Amorphous carbon and the forms it takes
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Exam practice: The laboratory test for carbon dioxide
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Spot my mistake: Confusing the two oxides of carbon in a test
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Practice set: Soil pollution and the effects it has
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Spot my mistake: Confusing the greenhouse effect with ozone depletion
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Exam practice: Fertilisers and their effect on crop yield
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Spot my mistake: Assuming every chemical is harmful
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Practice set: Carbon and its compounds reviewed
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Practice set: Cement production in Nigeria
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Spot my mistake: Assuming every chemical plant makes the same kind of product
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Exam practice: The fractional distillation of crude oil
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Practice set: Sublimation as a method of separation
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Spot my mistake: Thinking isotopes of an element react differently
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Practice set: Valency deduced from electron configuration
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Practice set: Writing the formulae of simple binary compounds
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Exam practice: The common radicals and the charges they carry
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Spot my mistake: Writing a formula without balancing the charges
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Practice set: Ionic equations for precipitation reactions
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