488 prompts matching "Giving an exothermic change a positive enthalpy"
Exam practice: Metallic bonding and hydrogen bonding
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Real-life Nigeria: Bond type and the physical properties that follow from it
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Project task: Classifying ten given substances by bond type
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Chemistry at work: Bonding and the strength of engineering materials
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Teach me: The mole and the Avogadro constant
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Quiz me: Molar mass and how it is obtained
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Practice set: Converting between mass, moles and particles
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Spot my mistake: Using molar volume for a substance that is not a gas
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Real-life Nigeria: The mole in laboratory and industrial measurement
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Project task: Measuring out one mole of three different substances
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Chemistry at work: Why the mole underpins all quantitative chemistry
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Teach me: What a balanced equation tells you quantitatively
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Quiz me: Balancing equations of increasing difficulty
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Explain back: The mole ratio and how it is read
I have just studied the mole ratio and how it is read in my SS3 Chemistry class. Let me ex
Exam practice: Mass-to-volume and volume-to-volume calculations
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Spot my mistake: Reading a mole ratio off an unbalanced equation
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Calculation practice: Limiting reagent and percentage yield calculations
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Chemistry at work: Stoichiometry in Nigerian chemical manufacturing
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Quiz me: Boyle's law, Charles's law and the pressure law
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Explain back: The combined gas equation and the ideal gas equation
I have just studied the combined gas equation and the ideal gas equation in my SS3 Chemist