500 prompts matching "Calculating the mass of ammonia from nitrogen and hydrogen"
Quiz me: Air pollutants and where they come from
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Exam practice: Magnetic separation and the use of a separating funnel
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Exam practice: Ionisation and the formation of cations and anions
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Chemistry at work: Electron configuration and the design of new materials
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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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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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Real-life Nigeria: Graham's law of diffusion and the uses made of it
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Explain back: The properties of bases and of alkalis
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Exam practice: The reactions of alkalis with acids and with ammonium salts
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Chemistry at work: The sources of error in a titration, and how to reduce them
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Explain back: The structure of diamond and the properties it gives
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Exam practice: The uses of diamond and of graphite
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Project task: Modelling the structures of diamond and graphite
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Chemistry at work: The newer forms of carbon and what they promise
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Explain back: The properties and uses of carbon dioxide
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Quiz me: The branches of chemistry
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