500 prompts matching "Assigning oxidation numbers in compounds and in ions"
Calculation practice: Checking that an equation balances by counting atoms
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Calculation practice: Checking the charge balance in an ionic equation
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Spot my mistake: Placing hydrogen wrongly in the periodic table
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Spot my mistake: Confusing a bond within a molecule with a force between molecules
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Calculation practice: Predicting relative boiling points from structure
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Spot my mistake: Leaving the temperature in Celsius in a gas calculation
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Calculation practice: Solving a Boyle's law problem numerically
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Chemistry at work: Gas behaviour in industrial processes
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Teach me: Combining the three gas laws into one
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Spot my mistake: Using the wrong value of R for the units given
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Real-life Nigeria: Graham's law of diffusion and the uses made of it
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Spot my mistake: Confusing a solution with a suspension
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Calculation practice: Calculating the solubility of a solute
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Real-life Nigeria: The water cycle and its importance
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Spot my mistake: Treating every kind of hardness with the same method
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Calculation practice: Comparing soap lather as a measure of hardness
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Chemistry at work: Water quality work in Nigeria
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Spot my mistake: Calling every base an alkali
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Calculation practice: Calculating the concentration of an alkali
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Chemistry at work: The uses of bases in Nigerian industry
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