250 prompts matching "Crystallisation, and how it purifies a solid"
Explain back: The strength of an acid and the degree of ionisation
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Exam practice: The hydrolysis of salts and the pH that results
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Real-life Nigeria: Volumetric analysis in Nigerian quality control
Act as my SS2 Chemistry tutor. Show me where volumetric analysis in Nigerian quality contr
Teach me: The mole ratio in a titration calculation
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Quiz me: Reading a titration results table
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Calculation practice: Calculating the purity of a sample from titration data
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Teach me: Enthalpy and the enthalpy change of a reaction
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Quiz me: Exothermic and endothermic changes distinguished
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Explain back: The standard enthalpy of formation
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Practice set: The standard enthalpies of combustion and of neutralisation
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Exam practice: The energy profile diagram and activation energy
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Explain back: How a catalyst lowers the activation energy
I have just studied how a catalyst lowers the activation energy in my SS2 Chemistry class.
Practice set: Homogeneous and heterogeneous catalysis
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Teach me: Reversible reactions and dynamic equilibrium
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Practice set: The effect of concentration and of pressure on equilibrium
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Teach me: The nature of a solution and the process of dissolving
You are my personal SS2 Chemistry tutor. Teach me the nature of a solution and the process
Quiz me: The factors that affect solubility
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Explain back: Saturated and supersaturated solutions
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Calculation practice: Calculating solubility in moles per cubic decimetre
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Quiz me: What causes temporary and what causes permanent hardness
Act as my SS2 Chemistry tutor and quiz me on what causes temporary and what causes permane