500 prompts matching "What hardness is, and what causes it"
Exam practice: The reactions of alkalis with acids and with ammonium salts
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Practice set: The end point, and how it is recognised
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Practice set: Coke and the uses it is put to in industry
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Real-life Nigeria: Coal mining at Enugu and its history
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Real-life Nigeria: Isomerism, and why it matters
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Chemistry at work: Why systematic naming matters in trade and medicine
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Explain back: The limiting reagent, and how to identify it
I have just studied the limiting reagent, and how to identify it in my SS1 Chemistry class
Quiz me: Groups and periods, and what each tells you
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Explain back: Evaporation, crystallisation and distillation
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Explain back: Water as a solvent, and the solutions it forms
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Teach me: What electrolysis is
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Explain back: The electrodes, and what happens at each of them
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Project task: The carbon cycle and its stages
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Teach me: What environmental chemistry studies
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Chemistry at work: Pollution control and environmental careers in Nigeria
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Explain back: Filtration and the apparatus it uses
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Explain back: Fractional distillation and the fractionating column
I have just studied fractional distillation and the fractionating column in my SS1 Chemist
Explain back: The octet rule and chemical stability
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Chemistry at work: Electron configuration and the design of new materials
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Explain back: The state symbols and what each of them means
I have just studied the state symbols and what each of them means in my SS1 Chemistry clas