500 prompts matching "Chemistry at work: Hardness and the Nigerian water supply industry"
Exam practice: Ionic equations for neutralisation
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Spot my mistake: Leaving spectator ions in an ionic equation
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Teach me: The arrangement of the modern periodic table
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Practice set: Predicting valency from the group number
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Spot my mistake: Placing hydrogen wrongly in the periodic table
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Teach me: Why atoms form chemical bonds
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Practice set: Drawing dot-and-cross diagrams for simple molecules
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Exam practice: Coordinate or dative bonding
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Practice set: How structure determines melting and boiling point
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Exam practice: Giant and simple molecular structures compared
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Calculation practice: Predicting relative boiling points from structure
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Exam practice: Converting between Celsius and Kelvin
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Calculation practice: Solving a Boyle's law problem numerically
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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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Teach me: What a base is
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Practice set: Measuring pH with paper and with a meter
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Calculation practice: Relating pH to hydrogen ion concentration
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Exam practice: Recording titration readings in a results table
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Spot my mistake: Reading a burette from the wrong part of the meniscus
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