"Chemistry of diamonds" Essays and Research Papers

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    The Western World and blood diamonds- our responsibility We are use to say that a girl’s best friend is a diamond‚ but where does these diamonds come from and do they really just cost a high amount of money? Here in Sweden a diamond ring with a 0.30 ct stone could cost up to 18.000kr. Most of us are ready to pay this price to show our love to our partner. But I do not think as many are ready to pay with a human life. Most of the diamonds does come from war-torn areas in Africa. Could it be any

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    Organic Chemistry

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    * Introduction to Organic Chemistry Understand the basis of drawing organic structures Depicting 3-D structures in 2-D Most organic compounds have a three-dimensional structure. How do we represent structures on our two-dimensional page? For example‚ methane is a tetrahedral molecule: Bonds in the plane of the paper: Bonds coming towards the observer: (out of the page) Bonds going away

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    Fireworks Chemistry

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    Fireworks and What Makes Them Go Sparks! Colors! Things that go BOOM! Chemistry doesn’t get much better than this. Ever notice how minutes drag on for hours when you’re waiting for a fireworks show to begin? Everyone’s thinking the same thing: The sky is dark enough the hot dogs are all eaten…come on when are they going to start? Then the first rockets streak into the sky…Ooh! Aah! Yes‚ it was worth the wait. The birthplace of fireworks is generally recognized as China.

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    The International Response The problem of conflict diamonds was first made public thanks to the efforts of several international NGOs‚ who bluntly denounced the links between the diamond trade and the wars in the African continent. NGOs played a major role in denouncing the trade of blood diamonds and ultimately demanding a response from those responsible. Notable about this campaign was its success in uniting unofficial diplomatic channels with a number of official as well as unofficial networks

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    Chemistry Magic

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    Match and Water in a Glass Science Magic Trick Fun Trick with Fire and Water This is a simple and interesting science magic trick involving fire and water. All you need is water‚ a glass‚ a plate‚ and a couple of matches. Pour water into a plate‚ light a match in the center of the dish and cover it with a glass. The water will be drawn into the glass. Match and Water Trick Materials • plate • water • 2 wooden matches • a quarter or other large coin • colored water

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    IMPORTANT TOPICS OF CHEMISTRY 2009 Chap No.1 Q.1- Define chemistry & branches of chemistry any three? Q.2-Lrean about history of chemistry for short question and fill in the blanks? Q.3 what is scientific method? Define hypothesis and theory? CHAP NO.2 Q.1-Learns about any three laws of chemical combination only statement and example? Q.2-Define chemical reaction and types of chemical reaction with one example for each with the help of chemical equation? Q.3-Define MOLE‚ Atomic no

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    by : Directorate of Education‚ Delhi SOME IMPORTANT REASONING BASED QUESTIONS OF ORGANIC CHEMISTRY 1. Chlorobenzene is less reactive than chloromethane. Ans. In chlorobenzene‚ each carbon atom of benzenering is sp2 hyridised and is electron withdrawing. Chlorine atom donates a lone pair of electron and acquire positive charge. The negative charge is delocalised on ortho and para position by resonance. C-Cl bond acquires partial double bond character and is 169 pm as compared to 17.0 pm in chloromethane

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    reviews of the film Blood Diamond PAPER PRESENTED BY; MICHAEL NJERU NYAGA REG : M66/CE/22669/2010 To: Dr. S. M . Otieno April 2012 Blood Diamond. Introduction. Film as a social medium is expected to narrative the narratives that emanate from within the environment we live in. Film has indeed been dedicated to telling the tale of man since it was born in 1895. The film Blood Diamond endeavours to tell to

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    Chemistry Revision

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    Chemistry Revision F331 Isotopes - atoms with the same atomic number‚ but different mass numbers 131I - radioactive tracer for thyroid. 99Tc for tumours. Radioisotopes - gamma emitters & short half life - long enough to detect‚ but not long enough for damage. Beta particles emitters are more useful than alpha particle emitters because they penetrate more and so are more easily detected. Also‚ less damaging. The half life is the time taken for half the isotope to decay Mass left = initial

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    Chemistry in the kitchen

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    CHEMISTRY IN THE KITCHEN Presented by: Jose Martin Jaca Jerizza Nina Vidal Krysha Jade Pepito Mae Karen Apas Jose Romano Jr. Feb Daphne Kay Ornopia Ma. Trisha Tiffany Uy Chemistry in the Kitchen 1. Growing Food 1.1 Chemicals Needed for Life 1.2 Fertilizers and their Problems 1.3 pH of Soil 1.4 Hunger Problems 2. Cooking 2.1 Physical and Chemical Change 2.2 Effects of Cooking 3. What is Cooking?: Methods of Cooking 3.1 Baking: Chocolate Chip Cookies 3.2 Frying: French Fries

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