result of this calculation is a starting requirement of 576.5 tons of iron ore fines entering the system to ensure 400 semi-processed tons enter the 2nd reactor. The 356.4 tons of outflow from the 2nd reactor (400 x 1- yield loss x 1- mass loss) is the input to the next step. We continued to take the outflow from each step and multiply by (1- the yield loss) to arrive at the final value of 321.5 tons of Hot Briquetted Iron (HBI)‚ per cycle. The number of cycles in a year was determined
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Chemistry 11 Final Examination Review - Answers Part A - True or False. Indicate whether each of the following statements is true or false. Correct the false statements. F 1. The mass of an electron is equal to the mass of a proton. The mass of an electron is less than the mass of a proton. T 2. The mass of a proton is approximately equal to the mass of a neutron. T 3. The atomic number represents the number of protons in a nucleus. T 4. The proton has a mass of approximately
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Behind the closed doors of a nail salon is the truth of how damaging nail products are. Not having Regulations that can protect manicurist from the damaging effects. The lack of regulations are affecting many workers in nail salons. The regulations U.S has on chemicals in nail products comply of only having certain things expected by the Food and Drug administration(FDA). That is to say “Cosmetic products and ingredients don’t need FDA premarket approval.”(211) Thus‚ being the companies have full
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1 An Exercise in Solution Preparation – The BR Oscillation Reaction By Issra Mehdi Date: January 28‚ 2010 This experiment was performed using familiarity with molarity‚ percent composition‚ and density to prepare solutions that will display chemical oscillation upon mixing. Solution A was prepared by transferring the calculated amount of malonic acid to a volumetric flask with a small amount of distilled water. Then the calculated amount of manganese sulphate solution was pipeted to the
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2012 Spectrophotometric Determination of Iron in Aqueous Solutions as a Complex of 1‚10-Phenanthroline Introduction From the previous classical method of concentration determination of an unknown sample‚ this experiment now deals with the instrumental one. Unknown concentrations of iron in solutions were determined by measuring their corresponding absorbances through spectrophotometry. A spectrophotometer measures the amount of light that a solution absorbs. This is done by bombarding the sample
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Known as the Iron Lady of Malaysia‚ Datuk Maznah Hamid is a very well known entrepreneur‚ business woman as well as a famous motivational author and speaker. Long time ago‚ Datuk Maznah decided to buy an almost bankrupt‚ unknown security company and turned into a successful company that provide secutiry services. During the early of her involvement‚ she employed a few guards‚ with herself being jack of all trades in the small outfit includes clerk‚ secretary‚ manager and sometimes the she become
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Nail Biting Screed Take a nice deep breath‚ close your eyes and begin to relax...... Make yourself as comfortable as you can. Now I would like you take one deep breath and hold it. And just let go.....thats’s good. As you concentrate on your breathing.....everyday noises will soon to disappear.....and the only thing of importance is the sound of my voice. Helping you to relax deeper and deeper. Just allow yourself to relax totally. You don’t have to do anything.....You don’t have to think.
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corrosion but the term is restricted to iron or products made from it. Iron is easily prone to rusting making its surface rough. Chemically‚ rust is a hydrated ferric oxide. Rusting‚ an electrochemical mechanism: Rusting may be explained by an electrochemical mechanism. In the presence of moist air containing dissolved oxygen or carbon dioxide‚ the commercial iron behaves as if composed of small electrical cells. At anode of cell‚ iron passes into solution as
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When you mix copper‚ silver‚ and nitrate together‚ you will end up with silver nitrate solution will turn blue (it has become copper nitrate). On the piece of copper‚ there would be a coating of solid silver. If a chemical reaction is going to be observed when chemicals are mixed‚ heated or any other means of altering the substance‚ then we will be able to predict the products formed. If it is observed that in the original versus the changed substance no new substances are formed‚ the change is reversible
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Chapter 24 Industry Comes of Age The Iron Colt Becomes an Iron Horse * After Lincolns death in 1865 the railroad production went up and by the 1900s it had gone up by at least 192‚556 miles * In 1862 congress began to advance liberal money loans to 2 favored cross continent companies and gave them a lot of acres paralleling the tracks. Washington gave the railroads 155‚504‚994 acres & the western states contributed 49 million more. * Land grants to railroads were made in broad belts
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