250 prompts matching "The sources of each major pollutant in Nigeria"
Exam practice: How alkenes react by addition across the double bond
Act as my SS2 Chemistry teacher setting exam questions. Give me five exam-style questions
Chemistry at work: The petrochemicals made from oil and gas
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Exam practice: Converting ammonia into nitrogenous fertiliser
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Exam practice: Nuclear fission and nuclear fusion distinguished
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Exam practice: A full SS2 Chemistry paper under examination conditions
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Calculation practice: A mixed set of SS2 Chemistry calculations
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Spot my mistake: Predicting ionic character from electronegativity difference
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Calculation practice: Predicting a substance's structure from its properties
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Quiz me: Recognising oxidation in a given equation
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Practice set: Assigning oxidation numbers in compounds and in ions
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Practice set: Balancing a redox equation by half-equations
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Calculation practice: Balancing a redox equation in acidic solution
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Explain back: Why metals conduct heat and electricity
I have just studied why metals conduct heat and electricity in my SS2 Chemistry class. Let
Spot my mistake: Assuming every metal is hard and dense
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Calculation practice: Comparing metals by a density calculation
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Explain back: Extraction by reduction with carbon
I have just studied extraction by reduction with carbon in my SS2 Chemistry class. Let me
Spot my mistake: Proposing carbon reduction for a very reactive metal
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Spot my mistake: Assuming all non-metals are gases
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Calculation practice: Predicting a non-metal's valency from its group
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Spot my mistake: Describing a non-metal oxide as basic
Act as my SS2 Chemistry tutor. Show me a worked answer on describing a non-metal oxide as