500 prompts matching "Calculating the yield of soap from a given mass of oil"
Exam practice: Gay-Lussac's law of combining volumes
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Explain back: Molar mass and how it is found
I have just studied molar mass and how it is found in my SS1 Chemistry class. Let me expla
Spot my mistake: Using molar mass where molar volume is required
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Explain back: Naming compounds of metals with variable valency
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Calculation practice: Deducing a formula from a systematic name
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Practice set: The Kelvin scale, and converting to it
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Quiz me: The terms in the general gas equation
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Practice set: Applying the general gas equation to a problem
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Spot my mistake: Forgetting to convert pressure units before calculating
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Quiz me: Reading mole ratios from a balanced equation
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Chemistry at work: Empirical and molecular formulae from composition data
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Practice set: The trend in ionisation energy down a group
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Calculation practice: Predicting a property from an element's position
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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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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
I have just studied oxidation and reduction in terms of electrons in my SS1 Chemistry clas
Practice set: Oxidation numbers and how to assign them
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Exam practice: Heat of reaction, of neutralisation and of combustion
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