500 prompts matching "Describing limestone as the reducing agent"
Chemistry at work: How Mendeleev's table predicted undiscovered elements
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Explain back: Evaporation, crystallisation and distillation
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Practice set: Fractional distillation and what it separates
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Exam practice: Chromatography and how it works
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Spot my mistake: Choosing distillation where filtration would do
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Real-life Nigeria: Separation methods in Nigerian salt and oil production
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Spot my mistake: Confusing temporary hardness with permanent hardness
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Real-life Nigeria: Water treatment in Nigerian towns
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Real-life Nigeria: Air pollution in Nigerian cities
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Quiz me: Symbols, formulae and equations reviewed
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Calculation practice: A mixed set of second-term chemistry calculations
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Quiz me: Electrolytes and non-electrolytes
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Real-life Nigeria: Electroplating in Nigerian workshops
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Quiz me: Oxidation and reduction in terms of hydrogen
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Explain back: Oxidation and reduction in terms of electrons
I have just studied oxidation and reduction in terms of electrons in my SS1 Chemistry clas
Calculation practice: Balancing a redox equation by oxidation number
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Chemistry at work: Redox reactions in Nigerian industry
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Quiz me: Ionic bonding and how it forms
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Practice set: Drawing dot-and-cross diagrams
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Explain back: Activation energy and what it represents
I have just studied activation energy and what it represents in my SS1 Chemistry class. Le