250 prompts matching "Water as a solvent, and the solutions it forms"
Exam practice: Solutions, water and the atmosphere reviewed
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Teach me: The Bronsted-Lowry definition of acids and bases
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Exam practice: The procedure for a standard acid-base titration
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Teach me: The sources and impurities of natural water
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Calculation practice: Working out the formula of an ionic compound from its charges
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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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Spot my mistake: Rinsing the burette with water before filling it
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Explain back: The standard enthalpy of formation
I have just studied the standard enthalpy of formation in my SS2 Chemistry class. Let me e
Exam practice: The tests for water purity
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Calculation practice: Calculating the mass of washing soda needed to soften water
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Explain back: The formation and the effects of acid rain
I have just studied the formation and the effects of acid rain in my SS2 Chemistry class.
Exam practice: The structures of diamond, graphite and silica
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Real-life Nigeria: Alloys, and the reasons they are made
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Spot my mistake: Assigning an oxidation number without checking the overall charge
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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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Quiz me: The link between reactivity and the method of extraction
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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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