tutorMyself Chemistry is a non-commercial tool to support learning for Edexcel iGCSE Chemistry at one of Britain's top public schools. argh currently the bit*h of Enthalpy change question? iron) and non-metals (e.g. A blog covering and explaining the Edexcel IGCSE Chemistry specification for the 2016 summer exams. Our tips from experts and exam survivors will help you through. of the limiting reactant (eg the fuel burned or the solute added). 1:01 understand the three states of matter in terms of the arrangement, movement and energy of the particles, 1:02 understand the interconversions between the three states of matter in terms of: the names of the interconversions, how they are achieved and the changes in arrangement, movement and energy of the particles, 1:03 understand how the results of experiments involving the dilution of coloured solutions and diffusion of gases can be explained, 1:04 know what is meant by the terms: solvent, solute, solution, saturated solution, 1:05 (Triple only) know what is meant by the term solubility in the units g per 100g of solvent, 1:06 (Triple only) understand how to plot and interpret solubility curves, 1:07 (Triple only) practical: investigate the solubility of a solid in water at a specific temperature, 1:08 understand how to classify a substance as an element, a compound or a mixture, 1:09 understand that a pure substance has a fixed melting and boiling point, but that a mixture may melt or boil over a range of temperatures, 1:10 describe these experimental techniques for the separation of mixtures: simple distillation, fractional distillation, filtration, crystallisation, paper chromatography, 1:11 understand how a chromatogram provides information about the composition of a mixture, 1:12 understand how to use the calculation of Rf values to identify the components of a mixture, 1:13 practical: investigate paper chromatography using inks/food colourings, 1:14 know what is meant by the terms atom and molecule, 1:15 know the structure of an atom in terms of the positions, relative masses and relative charges of sub-atomic particles, 1:16 know what is meant by the terms atomic number, mass number, isotopes and relative atomic mass (Aᵣ), 1:17 be able to calculate the relative atomic mass of an element (Aᵣ) from isotopic abundances, 1:18 understand how elements are arranged in the Periodic Table: in order of atomic number, in groups and periods, 1:19 understand how to deduce the electronic configurations of the first 20 elements from their positions in the Periodic Table, 1:20 understand how to use electrical conductivity and the acid-base character of oxides to classify elements as metals or non-metals, 1:21 identify an element as a metal or a non-metal according to its position in the Periodic Table, 1:22 understand how the electronic configuration of a main group element is related to its position in the Periodic Table, 1:23 Understand why elements in the same group of the Periodic Table have similar chemical properties, 1:24 understand why the noble gases (Group 0) do not readily react, (e) Chemical formulae, equations and calculations, 1:25 write word equations and balanced chemical equations (including state symbols): for reactions studied in this specification and for unfamiliar reactions where suitable information is provided, 1:26 calculate relative formula masses (including relative molecular masses) (Mᵣ) from relative atomic masses (Aᵣ), 1:27 know that the mole (mol) is the unit for the amount of a substance, 1:28 understand how to carry out calculations involving amount of substance, relative atomic mass (Aᵣ) and relative formula mass (Mᵣ), 1:29 calculate reacting masses using experimental data and chemical equations, 1:31 understand how the formulae of simple compounds can be obtained experimentally, including metal oxides, water and salts containing water of crystallisation, 1:32 know what is meant by the terms empirical formula and molecular formula, 1:33 calculate empirical and molecular formulae from experimental data, 1:34 (Triple only) understand how to carry out calculations involving amount of substance, volume and concentration (in mol/dm³) of solution, 1:35 (Triple only) understand how to carry out calculations involving gas volumes and the molar volume of a gas (24dm³ and 24,000cm³ at room temperature and pressure (rtp)), 1:36 practical: know how to determine the formula of a metal oxide by combustion (e.g. Calculate the reaction enthalpy for the following reaction: Use the following data: Reaction enthalpies are …

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