500 prompts matching "Making sulphur dioxide in the laboratory and testing it"
Exam practice: The electron configuration of the first twenty elements
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Spot my mistake: Confusing mass number with relative atomic mass
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Calculation practice: Calculating relative atomic mass from isotopic abundance
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Chemistry at work: How models of the atom developed over time
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Quiz me: Valency, and how it is worked out from configuration
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Spot my mistake: Confusing evaporation with boiling
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Quiz me: The symbols of the common elements
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Practice set: Naming a compound from its formula
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Spot my mistake: Changing a formula instead of a coefficient when balancing
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Teach me: The law of conservation of mass
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Quiz me: The law of constant composition
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Practice set: Verifying a law of combination from given data
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Exam practice: Gay-Lussac's law of combining volumes
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Calculation practice: Calculating masses that combine in a fixed ratio
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Teach me: What a mole is, and why chemists use it
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Quiz me: Avogadro's number and what it counts
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Exam practice: The volume one mole of any gas occupies at s.t.p.
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Spot my mistake: Using molar mass where molar volume is required
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Quiz me: Naming compounds of metals with fixed valency
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Practice set: Naming compounds that contain radicals
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