Bibliography: • Macmillan Chemistry Pathways 1 – Geoffrey Thickett • Excel Preliminary Chemistry – C.M.Roebuck • www.cem.msu.edu • greenlighton.files.wordpress.com • www.chemguide.co.uk
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Factual coursework - Joely Eyre It is debatable which of the articles in the Convention on the Rights of the Child is the most important. Perhaps it would be Freedom of expression‚ Freedom of thought‚ Freedom of conscience or Freedom of religion. These are all essential for the well-being and development of a child but what about article 28‚ the Right to education? Without an education‚ can a child really express their thoughts‚ understand their conscience or practise a religion? Only a balanced
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MA932 Financial Statements Analysis Coursework 1 1. The circumstances in which the revaluation model may be used: (In accordance with IAS 38) There is active market‚ since the fair value of an intangible asset must be determined by reference to an active market in that type of asset. Sufficient regularity to ensure that the carrying amount of an intangible asset does not differ materially from fair value A. The 25000 revaluation decrease on 31 December 2011 should be recognized as an expense
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The Chemistry of Love: Could the first opportunity to fall in love influence our ability to love for a lifetime? There are many different types of love: sexual‚ romantic‚ platonic‚ filial‚ maternal‚ paternal‚ spiritual‚ love of self‚ love of country‚ love of possessions to name a few. Love for our mother‚ our first love‚ could be the pivotal love around which we build our ability to love in every other way. This paper will look at the chemistry that is involved in the baby’s first opportunity
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Anthony Martinez Mr. Hruby Chemistry R Period 4(5A) Name & Symbol: Platinum (Pt) Properties: -Atomic Number: 78 -Atomic Mass: 195.084 amu -Appearance: Shiny‚ smooth surface‚ silver like‚ solid. Melting point (K): 2045 Boiling point (K): 4100 Valence electrons: (+1)‚ +2‚ (+3)‚ +4‚ +6 Atomic radius (pm): 139 1st Ionization energy (kJ/mol): 868.1 Electronegativity: 2.28 Natural Occurring Isotopes: Six stable isotopes of platinum occur in nature (190‚ 192‚ 194
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Sodium is a metal from group 1 of the periodic table‚ this is a metal which reacts when it needs to‚ this metal has a low melting and boiling point‚ also it is very dense‚ this shows that when reacting with other substances it will be different and this is because it will not react the same the whole time. The other thing is that this elements electron configuration is 11 which is quite low when comparing them to the other elements in the periodic table. However this metal is more reactive than
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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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Chemistry of Sunscreens “Over 400 years ago‚ Copernicus declared that the sun was the center of our universe. Primitive societies in every continent have worshiped the sun as the god that provided warmth and made the crops grow” Today‚ the sun is not something we worship but something we try to avoid due to the fact that we are aware that it contains two main sources of ultraviolet radiation that is harmful to our bodies. Ultraviolet radiation (UVR) is defined by wavelengths‚ and is divided
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Elisa Hofmeister Kokesh Hour 3 AP Chemistry 5-29-12 The Chemistry of Coffee Green Coffee- Before coffee is roasted‚ it is referred to as “green coffee”. The green coffee is primarily made up of caffeine‚ lipids‚ carbohydrates‚ proteins (amino acids)‚ and organic acids (although inorganic acids exist in coffee as well). These groups are quite stable in the green phase‚ and it is the carbohydrates‚ proteins‚ and acids that will undergo significant reactions during roasting to produce coffee
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CHEMISTRY PROJECT INVESTIGATORY PROJECT ON: CAFFINE CONTENT OF TEA About caffeine: Caffeine is a naturally-occurring stimulant‚ found in several plants. Caffeine is water soluble‚ and is extracted into the brewed cup when preparing tea‚ coffee‚ or other caffeinated drinks. The most well-known plants containing caffeine are the tea plant‚ Camellia sinensis‚ coffee‚ yerba maté‚ and guayusa. Although tea is known to have a number of health benefits‚ heavy caffeine use is known to have unpleasant
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