428 prompts matching "Oxidation defined by oxygen, by hydrogen and by electrons"
Chemistry at work: Analytical chemistry as a career in Nigeria
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Practice set: Working out the particles present in a given atom
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Exam practice: Isotopy, with examples of isotopes
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Spot my mistake: Thinking isotopes of an element react differently
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Calculation practice: Calculating relative atomic mass from isotope abundances
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Chemistry at work: The historical models of the atom compared
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Spot my mistake: Giving an ion the same configuration as its parent atom
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Calculation practice: Deducing valency from a given configuration
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Teach me: Why chemists use symbols rather than words
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Quiz me: The symbols for the first thirty elements
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Practice set: Writing the formulae of simple binary compounds
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Spot my mistake: Writing a formula without balancing the charges
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Calculation practice: Working out relative molecular mass from a formula
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Chemistry at work: The international agreement behind chemical symbols
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Teach me: What a chemical equation represents
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Practice set: Writing an equation from a described reaction
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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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Practice set: Ionic equations for precipitation reactions
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Exam practice: Ionic equations for neutralisation
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