water sample from a salt spring and experimented with it. He shook it with ether and Lðwig found and isolated bromine. Carl’s school work made him not show his discovery‚ in 1826 Antoine Balard claimed he found bromine first. Bromine can be found in seawater. This element costs $4.90 per 100 grams.
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world would not be the same‚ and it would affect our world forever. One of the first inventions that the Romans made‚ was concrete. Concrete was used to be made as a glue like substance for building structures. The Roman concrete was made of lime‚ seawater and volcanic ash. According to the Article‚ Building materials and Techniques‚ on page one and paragraph five‚ it states that “Sometime in the third century B.C.‚ Roman builders discovered that adding a special kind of of sand to lime‚ in a ratio
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RESPIRATORY PIGMENTS Colored‚ metal-containing proteins that combine reversibly with oxygen‚ found in the body fluids or tissues of multi-cellular invertebrate animals and microorganisms. The role of these pigments is primarily to aid in the transport of molecular oxygen. Thus they are distinguished from respiratory enzymes‚ which are concerned with the metabolic consumption of oxygen. Four distinctly colored groups of respiratory pigments exist among invertebrates: hemoglobins (purple‚ become orange-red
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The Ionic mechanism and propagation of action potentials. The action potential is the result of a large‚ sudden increase in sodium permeability of the membrane. The resulting rush of sodium ions into the membrane and accumulation of positive charge on its inner surface drives the potential towards Ena. This is followed by repolarisation‚ whereby there is a large increase in the membranes permeability to potassium ions‚ hence the membrane returns to Ek. Explanation of the (ionic) mechanisms underlying
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Assignment Cover Sheet Names AIDA FARINA BINTI ISMAIL FARAH NABIHAH BINTI JOHARI MAGGIE YAW MEI KEI NOOR AISHAH BINTI MOHAMMED IZHAM Student ID UNIMKL-012462 UNIMKL-012460 UNIMKL-012697 UNIMKL-012482 Tutor Name WONG YAO HING Module ENOELI- April 2013 Assignment Title Advantages and disadvantages of plastic Word Count 1446 words Submission Date 5th July 2013 Please type your name‚ or sign‚ below to confirm that you have Used your own words and
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Elements Atomic No At. Mass Valency Elements At.No. At.Mass Valency Hydrogen(H) 1 1 (+1) Silicon(Si) 14 28 (+4) Lithium(Li) 3 7 (+1) Germanium(Ge) 32 73 (+4) Sodim(Na) 11 23 (+1) Tin(Sn) 50 119 (+4‚+2) Potassium(K) 19 39 (+1) Lead(Pb) 82 207 (+4‚+2) Rubidium(Rb) 37 85 (+1) Nitrogen(N) 7 14 (-3‚+5) Cesium(Cs) 55 133 (+1) Phosphorus(P) 15 31 (+3‚+5) Francium(Fr) 87 223 (+1) Arsenic(Ar) 33 75 (+3) Beryllium(Be) 4 9 (+2) Antimony(Sb)
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..... The Metric System‚ Abbreviations‚ and Conversions for Common Units of Measure On Line Unit Converter: http://www.easyunitconverter.com/ [ Table of Contents ] | Rules for Use of Abbreviations | The Metric System | | Length and Distance | Volume | Liquid Volumes | Mass | Area | Temperature | Pressure | | Humidity | Concentration | Salinity | pH | Time | This page presents the most common abbreviations you will use in general biology‚ especially those for units of measure.
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Great Lighthouse is also a great place to visit‚ being 300 feet high. And finally the musee de la Faience is devoted to the famous pottery. Other fun things to do are outdoor water sports‚ including sailing‚ kayaking‚ surfing and scuba diving. Spa seawater treatments are also available for relaxing purposes. Being close to the ocean‚ the weather is fairly nice and warm year round. Rain occurs regularly which keeps the countryside green and wooded. Although it rains often‚ cloudless days are common
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In the afternoon of October 29‚ 2012‚ I chilled at home during the melancholic day‚ but suddenly‚ Hurricane Sandy struck New York City. As soon as I was chilling at home‚ more news reports were pouring in about the tragedies Hurricane Sandy has brought such as extreme howling winds up to 90 miles per hour at Islip‚ extreme flooding at Seaside Heights‚ power outages‚ and fire at Breezy Point. Because of these extreme effects Hurricane Sandy has brought to us‚ it was a sign that people were to blame
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Sc Science test KEY STAGE 3 TIER 5–7 Paper 1 First name ________________________________________________ Last name ________________________________________________ School ________________________________________________ 2009 Remember I The test is 1 hour long. I You will need: pen‚ pencil‚ rubber‚ ruler‚ protractor and calculator. I The test starts with easier questions. I Try to answer all of the questions. I The number of marks available
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