Student workbook and teacher PP for OCR A Level Chemistry A Year 2 Unit 23, Chapter 23.3 Iodine-thiosulphate titration. The workbook should cover** two lessons;** The procedure in thiosulphate / iodine titration in analysis of an oxidising agent and the use of thiosulphate / iodine titration in analysis of copper (II) salts. The workbook contains levelled lesson outcomes, different type of tasks; how to carry out Iodine-thiosulphate titration, how to use the results from the titration in structured and unstructured calculations (stretch and challenge element). The PP for teachers supports the workbook and contains revealed in steps answers to Tasks in the Workbook… This resource (PP & the workbook together) could present a valuable solution in cases when students can not attend the lesson and need to catch up with the missed work. The resource was prepared using OCR A level Chemistry book; some questions used are from this book.

Student workbook and teacher PP for OCR A Level Chemistry A Year 2 Unit 24 Transition elements, Chapter 24.2 Formation and shape of complex ions, which could be used over two lessons. The following being covered: Formation of complex ions with bidentate and monodentate ligands (including writing formulae and deducing the charges ). Naming positive and negative complexes is covered ( as a stretch and challenge). Shapes of complex ions-square planar, octahedral complexes (with six monodentate ligands and in complexes with two bidentate and two monodentate ligands). The workbook contains lesson objectives, different type of tasks (including challenge tasks and stretch and challenge material) and assessment tasks which are clearly identified. The PP for teachers supports the workbook and contains the answers to Tasks in Workbooks. The answers are revealed in steps. This resource could present a valuable solution in case when students can not attend the lesson and need to catch up with the missed work. The resources were prepared with the use of A Level Chemistry for OCR A text book. Many images /diagrams that appear in student workbook and on PP were taken from this book. Some instructions in the workbook and the Summary questions (in assessment part of the booklet) refer to the above book.

Student workbook and teacher PP for OCR A Level Chemistry A Year 2 Chapter 24.3 Stereoisomerism in complex ions. The material covered could be used over two lessons (Lesson 1- cis and trans isomers and Lesson 2- Optical isomers), depending on time available. There is a short review of the conditions for E-Z and cis -trans isomerism in organic molecules and next, cis-trans isomerism is explored in square planar and in octahedral complexes (with six monodentate ligands and in complexes with two bidentate and two monodentate ligands). Optical isomerism is explored in octahedral complexes (with three bidentate ligands and in complexes with two bidentate and two monodentate ligands). The key terms associated with this topic, such as: complex ion, stereoisomers, optical isomers, octahedral shape, square planar, monodentate ligand, bidentate ligand and many more are used extensively. Students are given plenty of application tasks to assess their knowledge. There are many opportunities for student to practise using the wages to represent 3D structures of different isomers. The resources can be used in class, or by students themselves (e.g. if they are not in the lesson). Teacher PP supports Student workbook and contains answers to all questions. The answers are revealed in steps when working through questions. I have just updated this resource to include more recent exam questions. The resource was prepared with the use of A Level Chemistry for OCR A textbooks. Some diagrams and some questions were taken from this book.

Student workbook and teacher PP for OCR A Level Chemistry A Year 2 Unit 24 Transition elements, Chapter 24.4 Precipitation and ligand substitution in complex ions, which could be used over* two lessons. * The resource covers the reactions of Mn2+(aq), Cu2+ (aq), Fe2+ (aq), Fe3+ (aq) and Cr3+ (aq) with aqueous sodium hydroxide and ammonia solution;accompanying colour changes described; reactions described by ionic equations. Examples of ligand substitution reactions discusssed using [Cu(H2O)6]2+ and [Cr(H2O)6]3+ with ammonia and chloride ions. The complexes compared in terms of colour change, shape and coordination number. Importance of iron in haemoglobin, including ligand substitution involving O2 and CO is also discused. The workbook contains lesson objectives, different type of tasks (including challenge tasks and stretch and challenge material) and assessment tasks (self-assessed and exam questions). The PP for teachers supports the workbook and contains the answers to Tasks in Workbooks. The answers and explanations are revealed in steps. The resources were prepared with the use of A Level Chemistry for OCR A text book. Many images /diagrams that appear in student workbook and on PP were taken from this book. Some instructions in the workbook and the Summary questions (in assessment part of the booklet) refer to the above book.

Two Student workbooks and 2 teacher PPs for OCR A Level Chemistry A Year 2 Chapter 24.1 The d block elements and transition elements (Lesson 1) and The properties of transition metals (Lesson 2) Lesson 1 reviews such key terms as: orbital, sub-shells, energy levels, s, p and d blocks, d -block element, transition element. Next the electronic configuration of atoms and ions of transition metals is discussed. Copper and chromium electronic configuration is explained. Lesson 2 covers the properties of metals and specific properties of the transition metals caused by incomplete d sub-shell; variable oxidation states, having coloured compounds, acting as catalysts and forming complex ions. Homogeneous and heterogeneous catalysts are discussed. The workbooks contain lesson objectives , different type of tasks (including challenge tasks and stretch and challenge material) and assessment tasks (self-assessed and exam questions). The PP for teachers supports the workbook and contains the answers to Tasks in Workbooks. The answers and explanations are revealed in steps. This resource could present a valuable solution in case when students can not attend the lesson and need to catch up with the missed work. The resources were prepared with the use of A Level Chemistry for OCR A text book. Some images that appear in student workbook and on PP were taken from this book.

Student workbook and teacher PP for OCR A Level Chemistry Chapter 23.1 Redox reactions. The workbook captures the following lesson outcomes: : define and use the terms oxidation, reduction, redox, half equation, oxidising agent and reducing agent to a range of reactions; construct redox equations using half –equations; construct redox equations from oxidation numbers; construct half equations and overall redox equations. The workbook contains levelled lesson outcomes, different types of tasks (including challenge tasks and stretch and challenge material) and assessment tasks (self-assessed and exam questions). The workbook can be used over two lesson. The PP for teachers supports the workbook and contains the explanations and detailed answers to Tasks in Workbooks. The answers are revealed in steps. The resources were prepared with the use of A Level Chemistry for OCR A text book. Many images /diagrams that appear in student workbook and on PP were taken from this book. . This resource could present a valuable solution in case when students can not attend the lesson and need to catch up with the missed work.

Student workbook, teacher PP -for A Level Chemistry A Year 2 Unit 29 Chromatography and Spectroscopy, Chapter 29.2 Gas chromatography and GC-MS. This resource contains material for two lessons. The first lesson covers Gas chromatography; the second, covers GC-MS and contains many questions for students to complete. The workbook contains notes / different types of tasks and assessment tasks/exam questions that will allow students to gain the knowledge / develop skills and apply them to check / assess their learning on the following: • Describe gas chromatography, GLC and Mass spectrometry, MS • Interpret gas chromatograms in terms of retention times and the approximate proportions of the components of a mixture. • Interpret mass spectra • Calculate the percentage composition of a mixture from the relative peak areas in a gas chromatogram • Draw and use a calibration curve to calculate the amount of a substance in a mixture from a gas chromatogram • Explain how mass spectrometry can be combined with gas chromatography in GC–MS to provide a far more powerful analytical tool than gas chromatography alone • Discuss limitations and strengths of GC and MS as separate tools of analysis. The PP for teachers supports the workbook and contains the answers to Tasks and exam questions in the Workbook. Most answers are revealed in steps . The resources were prepared with the use of A Level Chemistry for OCR A textbook and some diagrams and questions used in this lesson have been taken this book. This resource could be used in home learning or when students cannot attend the lesson and need to catch up with the missed work.

Teacher and Student PP that reviews the reaction types and mechanisms of reactions studied over the two years of A Level Chemistry. The resource reviews such key terms as: electrophile, nucleophile, free radical, homolytic bond fission, heterophilic bond fission, carbocation. The following mechanisms are described and explained: free radical substitution nucleophilic substitution electrophilic substitution electrophilic addition nucleophilic addition nucleophilic addition-elimination elimination (haloalkanes with ethanoic hydroxide and alcohols with acid catalyst to form alkenes). The exam questions included give students extensive opportunities to apply their knowledge and assess their progress. Some of the questions contain Stretch and challenge element. Teacher PP is animated and contains all the activities from the Student PP and answers to all activities and exam questions from the Student PP. The resource can be used as a revision aid to prepare for the final exam but can be also used in lessons, over 2Years when students are learning the different mechanisms of reactions. The resource was prepared with the use of A Level Chemistry for OCR A textbook. Many images /diagrams that appear on PP are from this book.

Student workbook and teacher PP for OCR A Level Chemistry A Year 2 Unit 23, Chapter 23.4 Half cells and cells potential. The workbook captures the key learning for 23.4 ; types of half-cells with labelled diagrams how to measure standard electrode potentials using a standard hydrogen electrode how half cells can be combined to make an electrochemical cell how to determine the overall cell equation how to calculate a standard cell potential by combining two standard electrode potentials The material covered here should be best used over two lessons unless a very able class. The workbook contains levelled lesson outcomes, different types of tasks for students to complete and contains an extensive activity to achieve the learning outcomes for this topic. There are exam questions to assess students progress. The PP for teachers supports the workbook and contains the answers to Tasks. The answers and explanations are revealed in steps. This resource could present a valuable solution in cases when students are absent from a lesson and need to catch up with the missed work.

Student workbook and teacher PP for OCR A Level Chemistry Unit 29 Analysis, Chapter 29.6 Combined techniques and an extra PP with some past exam questions related to this topic. As this lesson is a review of concepts studied before, the resource could be used as revision material to review : tests for functional groups, IR spectroscopy, Mass spectroscopy, elemental analysis and NMR. The following concepts are being covered: Review of the qualitative tests for the following functional groups: alkene, phenol, alcohol, aldehyde, ketone, carboxylic acid, ester. Review of IR spectroscopy- how does it work; use of infrared spectrum to identify the presence of functional groups in an organic compound. Review of Mass spectroscopy – how does it work; use of molecular ion peak and fragmentation peaks in a mass spectrum to find the molecular mass and to identify parts of an organic structures. Combine evidence from IR and mass spectra to deduce isomers of organic structures- various questions to complete. Elemental analysis - to deduce the empirical formula of a compound from its mass composition. Combine evidence from elemental analysis, IR spectra, mass spectra and NMR spectra, to deduce structures of organic structures- many exam questions to select from. The workbook is for the students to complete. It contains varies activities to achieve the learning outcomes for Combined Techniques. Teacher PP supports the workbook- contain support / answers to the tasks. The answers, in most cases, are revealed showing the solutions to tasks in steps. The PP has many slides but it contains a detailed review of different techniques studied earlier. The resource was prepared with the use of A Level Chemistry for OCR A textbooks. Some diagrams and some questions were taken from this book.