500 prompts matching "The mole ratio and how it is read"
Practice set: Writing the formulae of simple binary compounds
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Chemistry at work: The international agreement behind chemical symbols
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Spot my mistake: Placing hydrogen wrongly in the periodic table
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Practice set: Drawing dot-and-cross diagrams for simple molecules
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Spot my mistake: Showing electron transfer in a covalent compound
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Teach me: The forces that act between molecules
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Exam practice: Giant and simple molecular structures compared
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Real-life Nigeria: Hydrogen bonding and the behaviour of water
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Spot my mistake: Leaving the temperature in Celsius in a gas calculation
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Real-life Nigeria: The gas laws in Nigerian tyres and cylinders
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Practice set: Molar volume and its value at s.t.p.
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Teach me: The structure of the water molecule
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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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Exam practice: Where hard water helps, and where it hinders
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Real-life Nigeria: Water pollution and its sources in Nigeria
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Chemistry at work: Water quality work in Nigeria
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Practice set: The preparation of a named alkali
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Calculation practice: Calculating the concentration of an alkali
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Chemistry at work: The uses of bases in Nigerian industry
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