500 prompts matching "The methods of softening hard water"
Exam practice: Gay-Lussac's law of combining volumes
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Practice set: Converting between mass, moles and number of particles
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Explain back: Naming compounds of metals with variable valency
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Calculation practice: Calculating a new volume after a change of pressure
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Quiz me: The terms in the general gas equation
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Exam practice: Percentage yield, and why it falls short of a hundred
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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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Calculation practice: A mixed set of second-term chemistry calculations
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Teach me: Oxidation and reduction in terms of oxygen
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Explain back: Oxidation and reduction in terms of electrons
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Exam practice: Heat of reaction, of neutralisation and of combustion
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Quiz me: Air pollutants and where they come from
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Explain back: Water pollution and its causes in Nigeria
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Quiz me: Soaps and detergents, and how they clean
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Calculation practice: A mixed set of SS1 Chemistry calculations
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Quiz me: The classes into which chemical industries fall
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Practice set: Separating a mixture of two miscible liquids
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Quiz me: The nucleus and what it contains
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