docx, 121.34 KB
docx, 121.34 KB
docm, 1.36 MB
docm, 1.36 MB
pptx, 3.72 MB
pptx, 3.72 MB

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.

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d-block elements / transition metals-properties -OCR A level

Student workbooks and teacher PPs for about 10 lessons (depending on time available) to cover the concepts of Chapter 24 Transition metals of OCR A Level chemistry. The following concepts are being covered: 1. The d-block elements and their electronic configuration. 2. Properties of transition metals and their compounds e.g., variable oxidation states, catalytic properties. 3. Formation of complex ions; types of ligands. 4. Shapes of complex ions. 5. Stereoisomerism in complexes -types and conditions a) Cis-trans isomerism b) Optical isomerism 6. Precipitation reactions of transition metal ions with aqueous sodium hydroxide and aqueous ammonia. 7. Ligand substitution reactions of copper (II) complexes and chromium (III) complexes. 8. Using electrode potential to explain Redox reactions involving transition metals ions. 9. Qualitative analysis -review from Y1 a) Identifying transition metal ions and ammonium ions b) Identifying negative ions (anions); carbonate, sulphate (VI), halide ions c) The correct sequence of tests needed to be carried out to identify anions if the tests are carried out on the same solution. The workbooks are for the students to complete. They contain various activities to achieve the learning outcomes for Transition metals and give opportunities for challenge and stretch. Teacher PPs support the workbooks- and contain support / answers to the tasks. The answers, in most cases, are revealed showing the solutions to tasks in steps.

£19.00

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