434 prompts matching "Exam practice: Empirical and molecular formula from composition"
Exam practice: The uses of diamond and of graphite
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Exam practice: Naming simple alkanes, alkenes and alkynes
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Practice set: Writing the formulae of simple binary compounds
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Practice set: Fertiliser, cement and soap manufacture in Nigeria
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Practice set: Diffusion, and what it shows about particles
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Practice set: Isotopes, and why they exist
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Practice set: Melting and boiling, and the energy each requires
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Teach me: Chemical symbols and where they come from
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Practice set: Verifying a law of combination from given data
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Practice set: Converting between mass, moles and number of particles
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Practice set: The Kelvin scale, and converting to it
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Practice set: Calculating the mass of product from the mass of reactant
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Practice set: The reactions of acids with metals and with carbonates
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Practice set: Fractional distillation and what it separates
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Teach me: The composition and structure of water
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Practice set: Hard and soft water, and the causes of hardness
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Practice set: The properties and uses of oxygen
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Quiz me: Symbols, formulae and equations reviewed
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Practice set: Acids, bases and salts reviewed
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Practice set: Oxidation numbers and how to assign them
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