470 prompts matching "Describing painting as a chemical method of rust prevention"
Chemistry at work: The international agreement behind chemical symbols
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Quiz me: Word equations and chemical equations compared
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Explain back: The state symbols and what each of them means
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Exam practice: The properties of Group 1, Group 7 and Group 0
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Calculation practice: Predicting the formula of a compound from group numbers
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Quiz me: Ionic bonding and the transfer of electrons
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Explain back: Covalent bonding and the sharing of electrons
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Chemistry at work: Metallic bonding and the sea of electrons
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Real-life Nigeria: Hydrogen bonding and the behaviour of water
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Chemistry at work: Structure and the design of Nigerian building materials
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Spot my mistake: Using the wrong value of R for the units given
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Real-life Nigeria: Graham's law of diffusion and the uses made of it
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Quiz me: The physical properties of water
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Explain back: The sources of water in Nigeria
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Calculation practice: Calculating the solubility of a solute
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Practice set: The preparation of a named alkali
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Exam practice: The reactions of alkalis with acids and with ammonium salts
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Calculation practice: Calculating the concentration of an alkali
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Spot my mistake: Reading a burette from the wrong part of the meniscus
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Chemistry at work: The sources of error in a titration, and how to reduce them
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