the mid sixteenth century a silver mine located at Potosi‚ South America was formed. This silver mine was one of the few major silver mines in the world‚ the others located in Northern Central America and Southern Japan. This certain mine was known for its distinctive rich black flint. Extensive excavation required more than three-thousand Indians to work away with picks and hammers to break up the ore and bring it up to the surface. Just after refining the ore‚ the silver is shipped to Spain then from
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Silver Atomic Number:47 Atomic Weight: 107.8682 Melting Point: 1234.93K (961.78C) Boiling Point: 2435K (2162C) Density: 10.501 grams per cubic centimetre Phase At Room Temperature: Solid Element Classification: Transition Metal Period Number: 5 Group Number: 11 Origin-: The word silver derives from the Anglo-Saxon word seolfor. Silvers chemical symbol comes from the Latin word for silver‚ argentum. History and Uses-: Silver has been in use for over 5‚000 years. Silver is obtained from
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SILVER By: Wahida Gh-Sakhi What is Silver? Silver is a chemical element with the chemical symbol Ag and atomic number 47. A soft‚ white‚ lustrous transition metal‚ it possesses the highest electrical conductivity of any element and the highest thermal conductivity of any metal. Element Symbol • Ag • Silver‚ Symbol Element Name • Silver Atomic Mass • The atomic mass is 107.8682 Atomic Number • The atomic number is 47 Bohr-Rutherford Diagram The Story of its Discovery Unknown since prehistoric
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1.John is twice as old as his friend Peter. Peter is 5 years older than Alice. In 5 years‚ John will be three times as old as Alice. How old is Peter now? 2. John’s father is 5 times older than John and John is twice as old as his sister Alice. In two years time‚ the sum of their ages will be 58. How old is John now? 3. Joan is 3 times as old as her sister. In 3 yeas ‚ shee will be two years more than twice the age her sister will be then. What are their ages? 4. Kevin is 4 years older than
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Arsh Shah Mrs. Murphy Honors English 1 March 24‚ 2011 Analytic Essay on “Silver” From similes to rhyme scheme Walter de la Mare shows what a beautiful evening is really like in this poem.The lyrical poem‚ “Silver”‚ by Walter de la Mare‚ enhances the imagery by repeating the word ‘silver’ to illustrate how the moon shines on everything by using similes and sensory language to describe a beautiful serene evening. Reading this poem the author will draw a great picture of a serene and calm evening
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such as gold and silver. Silver Exchange Traded Funds (ETFs) are traded in the stock market providing a non traditional investor of silver an easy way to gain exposure without having to purchase bullions of the commodity. The first silver ETF arrived on the scene in 2006—in the form of the iShares Silver Trust‚ managed by Barclays Global Investors. Today‚ the ETF has over $13 billion in assets and has returned 25.17% in average annualized returns since inception. Not only iShare Silver Trust‚ the spot
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Silver Iodide By: Paul Gilmore III Table of Contents I. Introduction II. Properties III. Cloud Seeding IV. Photography V. Toxicity VI. Conclusion VII. Works Cited Paul Gilmore III 15 April 2013 Ms. Placke 4th Period I. Introduction Silver Iodide is an inorganic compound represented by the formula AgI that is used in cloud seeding‚ photography‚ and can also be used as an antiseptic. These are the three main ways the compound
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Ap Chem. Period 7 9/14/2014 Analysis of Silver in an Alloy Purpose- To determine silver content of an alloy and to calculate the percent silver in the alloy. Materials Chemicals •Silver-Copper Alloy •Nitric Acid (NHO3) •Baking Soda (NaHCO3)(s) •Sodium Chloride (NaCl)(s) Equipment •Beakers‚ 100 and 250 mL •Filter Flask and Walter’s adapter •Stirring Rod •Wash Bottle •Watch Glass •Crucible Tongs •Ring Stand‚ Ring‚ Wire gauze •Bunsen Burner •Graduated Cylinder •Rubber or Plastic
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Silver is a very ductile and malleable metal used for thousands of years utensils‚ for trade‚ and as the basis for many monetary systems. Its value as a precious metal was long considered second only to gold. In Ancient Egypt and Medieval Europe‚ it was often more valuable than gold. Silver is currently about 1/50th the price of gold by mass‚ and 70 times more valuable than copper. Silver did once trade at 1/6th to 1/12th the price of gold‚ however‚ the discovery of great silver deposits in the
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The discovery of silver in Colonial America sparked a spanish global flow of silver as well as from the mines of Tokugawa‚ Japan. Although Spain was the primary distributer of silver‚ this global flow limited economic growth by creating an influx on silver. Peasants and people from lower classes were highly affected due to the fact that silver was required in an everyday basis but wasn’t provided for them. The Spanish‚ and the japanese served as providers of silver to the chinese economy. Throughout
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