IGCSE Complete Chemistry Notes Unit 1: States of matter Everything is made of particles. Particles in solid are not free to move around. Liquids and gases can. As particles move they collide with each other and bounce off in all directions. This is called random motion. In 2 substances‚ when mixed‚ particles bounce off in all directions when they collide. This mixing process is called diffusion. It’s also the movement of particles without a force. The smallest particle
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literary qualities of first eighty chapters might be discussed more efficiently rather than the last forty chapters in this essay. In addition‚ Honglou meng¡¯s three most outstanding qualities as literature which is its netted form structure‚ the vivid characters in the novel and diversity of literature technique will be discussed in this essay. Honglou meng is a book which consumed the whole life of Cao xue qing. It is believed that the novel is semi-autobiographical‚ mirroring the fortunes of
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Economic Systems. WHAT to produce HOW to produce WHOM to produce for Key terms. Free Market Economy also known simply as the Market Economy. Resource Allocation Price Mechanism Free market system is basically governed by consumers of the market. These are known as market forces. Their main aim is profit & the firms are all privately owned. Advantages: provides a wide array of goods & services. Responds quickly to consumer’s demands. Encourages use of better methods and
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Revision Checklist for IGCSE History 0470 Guide for Students Revision Checklist for IGCSE History 0470 A Guide for Students How to use this guide The guide describes what you need to know about your IGCSE History examination. It will help you to plan your revision programme for the examination and will explain what the examiners are looking for in the answers you write. It can also be used to help you to revise by using the tick boxes in Section 3‚ ‘What you should be able to’ to check
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IGCSE Chemistry 2012 exam revision notes by Samuel Lees Contents: 1. The particulate nature of matter 2. Experimental techniques 2.1 Measurement 2.2 (a) Criteria of purity 2.2 (b) Methods of purification 3. Atoms‚ elements and compounds 4.1 Atomic structure and the Periodic Table 4.2 Bonding the structure of matter 3.2 (a) Ions and ionic bonds 3.2 (b) Molecules and covalent bonds 3.2 (c) Macromolecules 3.2 (d) Metallic bonding 3 Stoichiometry 4
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UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education *1939146864* GLOBAL PERSPECTIVES Paper 3 Candidates answer on the Question Paper. No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write your Centre number‚ candidate number and name on all the work you hand in. Write in dark blue or black pen. Do not use staples‚ paper clips‚ highlighters‚ glue or correction fluid. You may use a pencil for any diagrams or graphs. There
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Electricity Comes to Cocoa Bottom Then all the children of Cocoa Bottom went to see Mr. Samuel ’s electric lights . They camped on the grass bank outside his house‚ their lamps filled with oil ‚ waiting for sunset‚ watching the sky turn yellow‚ orange . Grannie Patterson across the road peeped through the crack in her porch door . The cable was drawn like a pencil line across the sun . The fireflies waited in the shadows‚ their lanterns off . The kling-klings* swooped
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Intro. To African American Lit. 202-05 Professor McCollin October 19‚ 2012 Theme Essay The introduction to African American literature course can be broken up into time periods and styles of writing. Four very popular styles of writings include the folklore and traditions‚ slave narrative‚ rural‚ and urban living genres that bring about different depictions of African American life. In this paper‚ these four genres will be analyze with themes and dramatizations to further emphasize the point
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BUSINESS STUDIES Paper 2 0450/02 May/June 2003 1 hour 45 minutes Candidates answer on the Question Paper. No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write your Centre number‚ candidate number and name on all the work you hand in. Write in dark blue or black pen in the spaces provided on the Question Paper. Do not use staples‚ paper clips‚ highlighters‚ glue or correction fluid. Answer all questions. At the end of the examination‚ fasten all your work securely together
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Page 12 1 a) Between t = 30 and t = 45 mins b) 7.5 mins c) i) distance travelled = area under graph between t = 0 and t = 12½ mins ii) average speed = total distance travelled total time for journey = total area under graph 60 mins 2 a) ∆v = 32 m/s a =10 m/s² t = ∆v = 32 = 3.2 s a 10 b) 3 a) OP – constant acceleration PQ – constant acceleration (greater than OP) QR – constant speed RS – constant deceleration b) O and S c) 6 m/s d) 70 s e) Total distance travelled = area under
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