250 prompts matching "Entropy and the feasibility of a reaction"
Exam practice: The common oxidising and reducing agents and their tests
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Practice set: Density, melting point and hardness across the metals
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Exam practice: The reactivity series and how it is established
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Real-life Nigeria: Nigeria's metal deposits and their exploitation
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Chemistry at work: Metalloids, and where they sit between the two
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Practice set: Making sulphur dioxide in the laboratory and testing it
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Explain back: The preferential discharge of ions
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Explain back: Metals and their extraction reviewed
I have just studied metals and their extraction reviewed in my SS2 Chemistry class. Let me
Practice set: Non-metals and their compounds reviewed
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Real-life Nigeria: Linking bonding, structure and properties together
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Practice set: Amphoteric substances and how they behave
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Spot my mistake: Treating concentration and strength as the same thing
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Real-life Nigeria: Buffer solutions and where they matter
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Quiz me: The standard solution and how one is prepared
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Exam practice: The procedure for a standard acid-base titration
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Quiz me: Exothermic and endothermic changes distinguished
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Real-life Nigeria: Fuels and their heating values in Nigeria
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Calculation practice: Writing and using the equilibrium constant expression
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Practice set: The solubility curve, and how to read it
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Explain back: The methods of softening hard water
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