428 prompts matching "Oxidation defined by oxygen, by hydrogen and by electrons"
Exam practice: The electron configuration of the first twenty elements
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Practice set: Writing the electron configuration of a given ion
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Spot my mistake: Filling electron shells in the wrong order
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Spot my mistake: Leaving out the oxidation state where it is needed
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Practice set: Making an insoluble salt by mixing two solutions
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Exam practice: The laboratory preparation of hydrogen
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Calculation practice: Calculating the volume of oxygen used in a reaction
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Spot my mistake: Assigning an oxidation number to the wrong atom
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Quiz me: Writing out an electron configuration
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Practice set: Valency deduced from electron configuration
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Exam practice: Balancing an equation by inspection
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Calculation practice: Checking that an equation balances by counting atoms
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Spot my mistake: Placing hydrogen wrongly in the periodic table
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Spot my mistake: Showing electron transfer in a covalent compound
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Calculation practice: Relating pH to hydrogen ion concentration
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Spot my mistake: Explaining graphite's conductivity by the wrong structure
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Teach me: What chemistry is, and what chemists study
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Exam practice: The links between chemistry and the other sciences
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Calculation practice: The units and quantities used in chemistry
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Real-life Nigeria: Chemistry in Nigerian homes and markets
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