250 prompts matching "Chemistry at work: Plastic waste and the disposal problem in Nigerian cities"
Exam practice: The electrolysis of molten and of aqueous compounds compared
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Practice set: Non-metals and their compounds reviewed
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Exam practice: Electrolysis and electrochemistry reviewed
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Spot my mistake: The errors most often made in first-term SS2 Chemistry
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Calculation practice: A mixed set of first-term SS2 chemistry calculations
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Practice set: Amphoteric substances and how they behave
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Spot my mistake: Rinsing the burette with water before filling it
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Practice set: Finding the concentration of an unknown acid
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Exam practice: Finding the concentration of an unknown alkali
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Calculation practice: Calculating the purity of a sample from titration data
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Practice set: Homogeneous and heterogeneous catalysis
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Spot my mistake: Saying a catalyst changes the position of equilibrium
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Exam practice: The effect of temperature on the position of equilibrium
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Spot my mistake: Claiming a catalyst shifts the position of equilibrium
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Practice set: The solubility curve, and how to read it
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Spot my mistake: Reading a solubility curve at the wrong temperature
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Practice set: The stages of municipal water treatment
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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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Practice set: The greenhouse effect and global warming
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