436 prompts matching "Exam practice: Removing permanent hardness by chemical and ion-exchange methods"
Chemistry at work: The historical models of the atom compared
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Quiz me: Writing out an electron configuration
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Spot my mistake: Giving an ion the same configuration as its parent atom
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Quiz me: The symbols for the first thirty elements
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Spot my mistake: Writing a formula without balancing the charges
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Spot my mistake: Altering subscripts in order to balance an equation
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Chemistry at work: Why balanced equations matter in industry
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Spot my mistake: Leaving spectator ions in an ionic equation
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Chemistry at work: Ionic equations in analytical work
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Spot my mistake: Placing hydrogen wrongly in the periodic table
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Chemistry at work: How the periodic table came to be arranged as it is
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Spot my mistake: Showing electron transfer in a covalent compound
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Spot my mistake: Confusing a bond within a molecule with a force between molecules
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Spot my mistake: Leaving the temperature in Celsius in a gas calculation
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Chemistry at work: Gas behaviour in industrial processes
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Spot my mistake: Using the wrong value of R for the units given
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Chemistry at work: Gas calculations in Nigerian industry
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Quiz me: The physical properties of water
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Spot my mistake: Confusing a solution with a suspension
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Chemistry at work: The laboratory tests for water
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