3. Generality on precious metals and diamond: 3.1. Precious metals performance : In recent years‚ precious metals have played an important role as an investment asset. Many investors are interested in precious metals as a financial investment due to a several criteria which present a security for therm. Among all precious metals‚ gold has been attracted most of the media and press. This popular metals has long been considered as a symbol of wealth and prosperity furthermore it has characterized
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already affected Great Britain‚ and is now concentrated in developing countries such as South Africa. Some of the world’s largest industrial diamond deposits are in South Africa‚ but even with this great natural resource‚ the nation still struggles with the risks of industrialization. Similar to Great Britain‚ the industrial lifestyle in South Africa’s diamond mines has caused substandard living conditions and working conditions that the employees of these companies are forced to face in order to survive
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In “The Carnival Dog‚ the Buyer of Diamonds‚” Myron tries to step out of his father’s shoes multiple times‚ but ultimately realizes that his father is the dominant force in his life. Ever since Myron was a child‚ Abe Lufkin has done everything in his power to make sure his son is the spitting image of himself. Myron doesn’t love everything his father does‚ but doesn’t really mind it either; however he tries to stand up for himself and step out of his father’s shadow. When Myron is a teenager‚ Abe
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Chemical Reactions and Equations Chemical Reaction: The transformation of chemical substance into another chemical substance is known as Chemical Reaction. For example: rusting of iron‚ setting of milk into curd‚ digestion of food‚ respiration‚ etc. In chemical reaction new substance is formed which is completely different in properties from the original substance‚ so in a chemical reaction chemical change takes place. Following are the signs of chemical reaction: (a) Change of state of substance
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My Chemical Romance. Gerard‚ Mikey and Frank all had drug problems. Mikey and Gerard‚ on top of that had alcohol problems. They got themselves better. They knew no one else could help them. What encouraged them to get better? Themselves‚ and the music. Ray had the absolutely awful job of having to watch them go through all of this‚ on top of him trying to be the perfect guitarist. Frank would do drugs over the weekend‚ and wake up on Monday not knowing anything that had happened. Mikey felt
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Report Submitted: February 17‚ 2013 Title: Physical and Chemical Properties Purpose: To investigate and learn the physical and chemical properties of pure chemical substances. Procedure: I used various different tools to investigate the different physical and chemical properties‚ such as blue and red litmus papers‚ beakers‚ and wells. Data Tables: Substance Name Color Odor Heat Effect Cold H2O Hot H2O Litmus Test Dilute HCl Dilute NaOH Mg Silver None None None Not soluble‚ small bubbles Red
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2014 Lab report #1 on chemical and physical properties/ changes Introduction Summary: The purpose of this experiment is to allow students to understand how to differentiate physical and chemical properties and reactions of matter by observing changes of matters under circumstances. Physical properties are properties of matter that can be observed without changing the composition of the matter‚ including the volume‚ mass‚ color‚ density‚ and shape of it. Chemical properties include the matter’s
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Shelby Brown 8/28/10 Physical and chemical changes lab essay Changes in matter occur every day. There are two types of ways matter can be altered; physically and chemically. Physical changes do not change the composition of the matter while chemical changes occur when one or more substances turn into a completely new substance. Physical changes can be seen through an altering of the substances physical property. A substances physical property is observed and measured without changing
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Name: Tom Flannigan Title: Physical and Chemical Properties Purpose: To investigate the chemical properties of pure chemical substances. To investigate the physical properties of pure chemical substances. Procedure: For this lab we used four test tubes and poured equal amounts of a substance in each test tube. We then observed the color and odor. We then heated the substance and recorded the observation. The next tube we added cold water and observed the effects‚ then we heated it
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Physical & Chemical Properties Data Table 1: Solubility or Reaction Substance Name Color Odor Effect of Heat Cold Water Hot Water Litmus test Dilute HCl Dilute NaOH Mg Silver None None None None Base Fizzes‚ gas‚ increased temperature None Cu Brown None None None None Base None None Zn Silver None None None None Base Fizzes None MgO White Slight odor None None Bubbles Base Dissolves‚ turns yellow‚ increased temperature None CuCO3 Green None Melts
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