Bromine

the catalyst, and EBIB as the initiator. The end group of the resulting polystyrene (PS-Br) is a bromine atom. The chain extension of PS-Br as a macroinitiator is usually associated with poor control when MMA monomers are used for the second block. To improve the initiation efficiency, we used the technique of halogen exchange. For this purpose, the end group of the macroinitiator should be a bromine atom, and Cu-Cl should be employed as a catalyst. To further enhance the efficiency of…

The book, The Disappearing Spoon by Sam Kean explores each of the elements on the periodic table. The Disappearing Spoon focusses on the history of the Periodic Table by telling stories that show how each element affected the scientists that discovered it. For each element, Kean supplies an extensive backstory for its foundation, the common (or uncommon) uses of the element and other useful factoids about the matter. The author begins the novel with a physical description of the Periodic Table…

Experiment 5: Anions and Redox Reactions Introduction (a) Objectives General: To examine the importance of potassium permanganate as an oxidising agent and the strong powers of halogens in oxidation. Part 1 Determining the colour associated with a certain halogen by adding a sample of the halogen to cyclohexane and recording the colours observed. Part 2 Identifying a halogen referring to the colours recorded in part 1, by reacting the halogen with a halide and observing the colour present.…

1) A Study of Cartel Stability: the JEC, Robert H. Porter, 1880-1886 This paper examines the model proposed by Green and Porter, which is a model of dynamic price competition under imperfect monitoring, i.e. firms encounter the problem of detecting and deterring deviation from the agreement. Firms can only observe the market price, but do not know the actual production level of another firm. Unexpected fall in prices may account for deviation from the colussive output or bad demand shock. So…

atoms have a positive pole. The polarity of water makes it unique and allows it to perform as a solvent (Duke University, n.d.). Since water is a solvent, most material found in saltwater is dissolved. The most present ions are: sodium, chloride, bromine, and different…

bigger atomic size, while Chlorine has the higher electronegativity, but size trumps electronegativity, as according to ARIO rules. This means that Iodine is more acidic than Chlorine, which means that in the reaction, the Iodide could displace the Bromine from the 1-bromooctane, because it has a bigger size, much faster than the Chloride, thus attesting the notion that Iodide is the more reactive than Chloride in the reaction. 2. The phase-transfer catalyst alkylates the reactants in the…

Carcinogenic Chemical Product: Fire Retardants Fire safety is a vital part of the modern technological society and as responsible citizens it is important to recognise that, with the aid of fire retardants, there is a prolong time frame of escaping from fires. This widely used carcinogenic product is composed of certain chemical elements within numerous everyday products (either inside the polymeric material or as an external layer) that help combat the ignition through chemical reactions at…

A Surgeon’s Morning Work Kilrain a confederate soldier was wounded at Little Round Top defending it, he was shot at the side of his stomach. He was taken to a hospital in an ambulance where he began to feel weak from the loss of blood. The bullet would’ve hit the lower part of his rib cage, it would’ve shattered his ribs and throw them towards tissue, possibly hitting his kidney which is a very serious injury, but surgeons during the Civil War didn’t have x-ray machines yet so they couldn’t…

has been considered a rare metal and a symbol of richness and power. Queen Elizabeth's crown had a frame made out of Platinum. Platinum has many common compounds but most of them are variations of compounds between Platinum and Flourine, Chlorine, Bromine, and Iodine. Platinum has 78 protons and 78 electrons when neutral. Its Noble Gas configuration is; [Xe] 6s2 5d8. Its Electron Configuration is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f14 5d8. Platinum has 6 natural isotopes,…

Gibson 1 Reagan Gibson Tripp Sanders Chemistry 1 May 2016 Introduction A Chemy Called Al is quite an interesting read. It is written by Wendy Isbell. It tells the story of a girl named Julie. The book begins talking about Julie and her electrical issues. It talks about her power being out but the TV still being on. It had to do with X-Ray Machines around the whole country. Well she goes to the land of Mathematics, she is afraid her friends are in danger- so she decides to go find them.…