This complete year 12 lesson covers the qualitative analysis of ions including carbonate ions, sulfate ions, halide ions and ammonium ions. It explains the use of precipitation reactions and acid-base reactions to identify cations and anions. The resource features a 27 slide animated PowerPoint that illustrates and explains the concepts in a lively and visual way and includes images of the observations in the key reactions. . A starter and a plenary activity are also included. A 7 page worksheet and answers to all exercises are provided. This resource is part of a series covering the OCR AS Chemistry specification and relates to the following sections: Module 3 – Periodic table and energy Part 1 – The periodic table 3.1.4 – Qualitative analysis Content covered: • Precipitation and acid-base reactions • Tests for carbon dioxide and ammonia • Tests for anions including carbonate, sulfate, chloride, bromide and iodide ions • Sequence of tests for anions, with reasons • Analysing mixtures of anions • Tests for cations – ammonium ion Duration: 1 lesson Please review! Links Previous topic: Topic 24 – The halogens https://www.tes.com/teaching-resource/the-halogens-ocr-as-chemistry-13125529 Next topic: Topic 25 – Enthalpy changes https://www.tes.com/teaching-resource/enthalpy-changes-ocr-as-chemistry-12509439 Related topic: Topic 23 – Group 2 https://www.tes.com/teaching-resource/group-2-ocr-as-chemistry-13074756

This complete year 12 lesson on enthalpy changes covers part of OCR section 3.2.1 (Enthalpy changes). It includes the energetics topics: exothermic and endothermic reactions, enthalpy profile diagrams and definitions of enthalpy changes with their equations. It features a 43 slide interactive PowerPoint that illustrates the concepts in a lively, visual and systematic way and includes a starter, learning checks, clearly explained examples and a plenary quiz. A 13 page worksheet and answers to the exercise are provided. This resource is part of a series covering the OCR AS Chemistry specification and relates to the following sections: Module 3 – Periodic table and energy Part 2 – Physical chemistry 3.2.1 – Enthalpy changes Content covered: • What is enthalpy • Law of conservation of energy • Enthalpy change • Enthalpy profile diagrams • System and surroundings • Exothermic and endothermic reactions and examples • Activation energy • Standard enthalpy changes • Standard conditions • Definitions of enthalpy changes and their equations • Simple calculations involving enthalpy changes Duration: 1 lesson Please review! Links Previous topic: Topic 24 – Qualitative analysis https://www.tes.com/teaching-resource/qualitative-analysis-ocr-as-chemistry-13128777 Next topic: Topic 26 – Experimental determination of enthalpy changes https://www.tes.com/teaching-resource/experimental-determination-of-enthalpy-changes-ocr-as-chemistry-12517135 Free resource - standard form, decimal places and significant figures https://www.tes.com/teaching-resource/resource-12405507

This complete lesson on amount of substance and the mole is ideal for classroom and home learning. It features a 49 slide interactive PowerPoint including starter, group activities, quizzes, questions and plenary along with a 13 page worksheet and a lesson plan. Answers to all exercises are provided. This lesson is part of a series covering the OCR AS Chemistry specification and relates to the following sections: Module 2 – Foundations in chemistry Part 1 – Atoms and reactions 2.1.3 Amount of substance Please review! Content covered: • Relative masses and the mole • Avogadro constant • Calculating number of atoms • Amount of substance • Molar mass • Calculating amount of substance from total mass and vice versa • Mole triangle Duration: 1-2 lessons Links Previous lesson: Topic 4 – Formulae and equations https://www.tes.com/teaching-resource/formulae-and-equations-ocr-as-chemistry-12186723 Next lesson: Topic 6 – Determining formulae https://www.tes.com/teaching-resource/determining-formulae-ocr-as-chemistry-12347977 Free resource - standard form, decimal places and significant figures https://www.tes.com/teaching-resource/standard-form-decimal-places-and-significant-figures-a-level-chemistry-12405507

Serving as an introduction to atomic structure, this lesson on the Changing Atom includes all the materials needed for a group activity on the contributions of key scientists to the development of the theory of atomic structure. It features an interactive PowerPoint including starter, group activity, questions and plenary along with a worksheet and a lesson plan. This is the first lesson in a series covering the OCR AS Chemistry specification and relates to the following sections: Module 2 – Foundations in chemistry Part 1 – Atoms and reactions 2.1.1 Atomic structure and isotopes Please review! Content covered How Science Works - HSW7 - The changing accepted models of atomic structure over time. The contributions of five scientists to the development of the theory of atomic structure. Duration : One part lesson (setting up) and one whole lesson (group activity and plenary). The rest of the part lesson can be spent starting atomic structure (see atomic structure lesson) Links Next lesson – Topic 1: Atomic structure https://www.tes.com/teaching-resource/atomic-structure-ocr-as-chemistry-12182593 Bundle covering the whole of the OCR A level chemistry specification sections 2.1.1 and 2.1.2. (topics 1-4) https://www.tes.com/teaching-resource/atomic-masses-formulae-and-equations-ocr-as-chemistry-12348685

This complete lesson on atomic structure and isotopes in terms of protons, neutrons and electrons is ideal for classroom or home learning. It features a 29 slide interactive PowerPoint including starter, group activities, questions and plenary along with an 8 page worksheet and a lesson plan. An exam style question is also included. Answers to all exercises are provided. A fully interactive PowerPoint multiple choice quiz is provided as a plenary activity, along with the A, B, C, D cards needed in the classroom. This lesson is part of a series covering the OCR AS Chemistry specification and relates to the following sections: Module 2 – Foundations in chemistry Part 1 – Atoms and reactions 2.1.1 Atomic structure and isotopes Please review! Content covered • Protons, neutrons and electrons – mass and relative charge • Atomic number and mass number • Isotopes • Key definitions Duration: one lesson Links Previous lesson: Topic 1: The changing atom https://www.tes.com/teaching-resource/the-changing-atom-ocr-as-chemistry-12182003 Next lesson: Topic 3: Atomic masses https://www.tes.com/teaching-resource/atomic-masses-ocr-as-chemistry-12183618 Bundle covering the whole of the OCR A level chemistry specification sections 2.1.1 and 2.1.2. (topics 1-4) https://www.tes.com/teaching-resource/atomic-masses-formulae-and-equations-ocr-as-chemistry-12348685

Now corrected with jigsaw discussion question sheets included. This complete year 12 lesson on the periodic table includes the history of the periodic table, the features of the modern periodic table and periodicity. The resource features a 20 slide animated PowerPoint that illustrates the concepts in a lively and visual way and includes a starter, a jigsaw discussion activity on the periodic table with a quiz, and a true-false quiz that could be used as a plenary or a recap at the start of the next lesson. A 4 page worksheet and answers to all exercises, quizzes and discussion questions are provided. This resource is part of a series covering the OCR AS Chemistry specification and relates to the following sections: Module 3 – Periodic table and energy Part 1 – The periodic table 3.1.1 Periodicity Content covered: • The history of the periodic table, including Newlands’ and Mendeleev’s contributions • The structure of the modern periodic table – periods, groups and blocks • Relationship between electron configuration and the periodic table • Periodicity – the variation in properties when plotted against atomic number • Periodicity and metallic character • Metal and non-metals Duration: 1-2 lessons Please review! Links Previous topic: Topic 20 – Structure and bonding OCR AS Chemistry https://www.tes.com/teaching-resource/structure-and-bonding-ocr-as-chemistry-12933603 Next topic: Topic 22 Periodicity of ionisation energies and melting points https://www.tes.com/teaching-resource/periodicity-of-ionisation-energies-and-melting-points-ocr-as-chemistry-12974680 Related topic: Topic 14 Electronic configurations – shells, sub-shells and orbitals https://www.tes.com/teaching-resource/electron-configuration-shells-sub-shells-and-orbitals-ocr-as-chemistry-12207312