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Pearson Edexcel IAL Chemistry

Unit 1: Structure, Bonding and Introduction to Organic Chemistry

Unit 2: Energetics, Group Chemistry, Halogenoalkanes and Alcohols

Topic 6: Energetics

Topic 7: Intermolecular Forces

Topic 8: Redox Chemistry and Groups 1, 2 and 7

8.1—What is meant by the term ‘oxidation number’ and understand the rules for assigning oxidation numbers

8.2—The oxidation number of elements in compounds and ions

8.3—Indicate the oxidation number of an element in a compound or an ion

8.4—Write formulae given oxidation numbers

8.5—Oxidation and reduction in terms of electron transfer and changes in oxidation number, and the application of these ideas

8.6—Oxidising agents gain electrons and reducing agents lose electrons

8.7—A disproportionation reaction involves an element in a single species being simultaneously oxidised and reduced

8.8—Oxidation number is a useful concept in terms of the classification of reactions as redox and as disproportionation

8.9—Metals, in general, form positive ions by loss of electrons with an increase in oxidation number whereas non-metals

8.10—Write ionic half-equations and use them to construct full ionic equations 8B: The elements of Groups 1 and 2 Students will

8.11—Reasons for the trend in ionisation energy down Groups 1 and 2

8.12—Reasons for the trend in reactivity of the elements down Group 1 (Li to K) and Group 2 (Mg to Ba)

8.13—The reactions of the elements of Group 1 (Li to K) and Group 2 (Mg to Ba) with oxygen, chlorine and water

8.14—The reactions of: i oxides of Group 1 and 2 elements with water and dilute acid ii hydroxides of Group 1 and 2 elements

8.15—The trends in solubility of the hydroxides and sulfates of Group 2 elements

8.16—The reasons for the trends in thermal stability of the nitrates and the carbonates of the elements in Groups 1 and 2

8.17—The formation of characteristic flame colours by Group 1 and 2 compounds in terms of electron transitions Students will be

8.18—Experimental procedures to show: i patterns in the thermal decomposition of Group 1 and 2 nitrates and carbonates Students

8.19—Reactions

8.20—Solution concentrations, in mol dm-3 and g dm-3

8.21—CORE PRACTICAL 3 Finding the concentration of a solution of hydrochloric acid

8.22—How to minimise the sources of measurement uncertainty in volumetric analysis and estimate the overall uncertainty in

8.23—CORE PRACTICAL 4 Preparation of a standard solution from a solid acid and use it to find the concentration of a solution

8.24—Reasons for the trends for Group 7 elements in: i melting and boiling temperatures and physical state at room temperature ii

8.25—The trend in reactivity of Group 7 elements in terms of the redox reactions of Cl2, Br2 and I2 with halide ions in aqueous

8.26—Understand, in terms of changes in oxidation number, the following reactions of the halogens: i oxidation reactions

8.27—The following reactions: i solid Group 1 halides with concentrated sulfuric acid, to illustrate the trend in reducing

8.28—Make predictions about fluorine and astatine and their compounds, in terms of knowledge of trends in halogen chemistry

Topic 9: Introduction to Kinetics and Equilibria

Topic 10: Organic Chemistry: Halogenoalkanes, Alcohols and Spectra

Unit 3: Practical Skills in Chemistry I

Assessed mathematical skills and measurement conventions

A-Level/Edexcel/Chemistry//AS/Concept/Unit 2: Energetics, Group Chemistry, Halogenoalkanes and Alcohols/Topic 8: Redox Chemistry and Groups 1, 2 and 7/8.18—Experimental procedures to show: i patterns in the thermal decomposition of Group 1 and 2 nitrates and carbonates Students

Unit 2: Energetics, Group Chemistry AS, Halogenoalkanes and Alcohols

Syllabus: 2017
Section: —
Level: AS

Exam analysis

Most tested topics

Topic 6: Energetics
Topic 7: Intermolecular Forces
Topic 8: Redox Chemistry and Groups 1, 2 and 7
Topic 9: Introduction to Kinetics and Equilibria
Topic 10: Organic Chemistry: Halogenoalkanes, Alcohols and Spectra