250 prompts matching "Testing the pH of several salt solutions"
Chemistry at work: Why ionic compounds conduct only when molten or dissolved
Act as my SS2 Chemistry tutor. Explain which Nigerian jobs and industries depend on why io
Practice set: Giant structures and simple molecular structures compared
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Calculation practice: Predicting a substance's structure from its properties
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Teach me: Oxidation defined by oxygen, by hydrogen and by electrons
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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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Teach me: Reduction defined, and always paired with oxidation
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Practice set: Balancing a redox equation by half-equations
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Real-life Nigeria: Redox in Nigerian bleaching and water treatment
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Chemistry at work: Redox reactions in batteries and cells
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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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Teach me: Ores, and what extraction means
You are my personal SS2 Chemistry tutor. Teach me ores, and what extraction means, using a
Explain back: Extraction by reduction with carbon
I have just studied extraction by reduction with carbon in my SS2 Chemistry class. Let me
Practice set: Extraction by electrolysis
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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