500 prompts matching "The calculation steps the examiner expects to see"
Exam practice: Naming acids and the salts derived from them
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Spot my mistake: Leaving out the oxidation state where it is needed
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Real-life Nigeria: The chemical names behind familiar Nigerian products
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Quiz me: The graph of pressure against volume
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Real-life Nigeria: The gas laws in Nigerian diving and gas cylinders
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Quiz me: The terms in the general gas equation
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Exam practice: The ideal gas equation and the gas constant
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Spot my mistake: Forgetting to convert pressure units before calculating
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Real-life Nigeria: Stoichiometry in Nigerian manufacturing
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Exam practice: The pH scale and what it measures
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Explain back: The methods of preparing a soluble salt
I have just studied the methods of preparing a soluble salt in my SS1 Chemistry class. Let
Exam practice: Neutralisation and the reaction it describes
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Spot my mistake: Choosing the wrong preparation method for a given salt
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Exam practice: The trend in metallic and non-metallic character
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Real-life Nigeria: The alkali metals and the halogens as families
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Quiz me: Filtration, and when it is the right method
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Quiz me: The physical properties that make water unusual
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Explain back: Water as a solvent, and the solutions it forms
I have just studied water as a solvent, and the solutions it forms in my SS1 Chemistry cla
Real-life Nigeria: Water treatment in Nigerian towns
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Quiz me: Separating the components of air
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