500 prompts matching "What a mixture is, and how it differs from a compound"
Calculation practice: Calculating the mass of ammonia from nitrogen and hydrogen
Act as my SS3 Chemistry tutor. Walk me through calculating the mass of ammonia from nitrog
Exam practice: The NPK rating and how to read it
Act as my SS3 Chemistry teacher setting exam questions. Give me five exam-style questions
Explain back: Variable oxidation state, and why it arises
I have just studied variable oxidation state, and why it arises in my SS3 Chemistry class.
Chemistry at work: Recording observations and inferences in the WAEC format
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Real-life Nigeria: Identifying a salt from combined cation and anion tests
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Practice set: The titration curve and the equivalence point
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Practice set: Iodine and thiosulphate titrations
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Chemistry at work: Redox titration in Nigerian industrial testing
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Chemistry at work: Electrolysis in Nigerian aluminium and chlorine production
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Practice set: The rate constant and its units
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Quiz me: Kc and Kp, and the difference between them
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Chemistry at work: The hazards of radiation and the precautions taken
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Chemistry at work: Laboratory discipline and safety in the practical examination
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Practice set: Percentage yield and percentage purity
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Practice set: Writing s, p and d electron configurations
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Chemistry at work: How spectra reveal electronic structure
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Chemistry at work: Periodicity in the design of new materials
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Practice set: Dative covalent bonding and where it occurs
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Chemistry at work: Bonding and the strength of engineering materials
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Chemistry at work: Why the mole underpins all quantitative chemistry
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