500 prompts matching "Chemistry at work: Carbon dioxide in Nigerian drinks and fire safety"
Real-life Nigeria: The uses of sulphuric acid in industry
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Teach me: Nitrogen, its occurrence and its inertness
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Real-life Nigeria: The nitrogen cycle and nitrogen fixation
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Teach me: What hardness is, and what causes it
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Practice set: Removing temporary hardness
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Exam practice: Removing permanent hardness by chemical and ion-exchange methods
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Spot my mistake: Expecting boiling to remove permanent hardness
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Real-life Nigeria: The advantages and disadvantages of hard water
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Practice set: Phosphate and potash fertilisers
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Spot my mistake: Assuming more fertiliser always means a better yield
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Real-life Nigeria: The effect of fertiliser overuse on soil and water
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Teach me: What makes an element a transition metal
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Exam practice: Transition metals and their compounds as catalysts
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Spot my mistake: Calling zinc a typical transition metal
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Teach me: The amines and their basic character
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Practice set: Proteins, their structure and the tests for them
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Exam practice: Carbohydrates and their classification
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Spot my mistake: Describing starch and cellulose as the same polymer
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Real-life Nigeria: The tests for protein, starch and reducing sugar
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Quiz me: The preliminary tests carried out on an unknown salt
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