Atmospheric Issues Appendix L Name SCI /275 Date Instructor Axia College Material Appendix L Air Pollution Chart After reviewing Ch. 8 and 9 of your text‚ complete the following table‚ then respond to the questions that follow: Issue Sources Health/Environmental Effects Carbon dioxide (CO ) Industries and Motor Reduces your bloods ability to move oxygen 2 Vehicles. throughout your body. Lower levels can cause fatigue and headaches. High levels cause death and mental impairment
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Background Information about Investigation The rates of chemical reactions in industry are carefully controlled because ‘Time is money!’ So it is important that chemists can make reactions happen and make useful products as quickly as possible. However‚ sometimes chemists deliberately slow down reactions to avoid health and safety risks. Some reactions can go out of control and lead to large amounts of toxic or flammable gases being made too quickly. One chemical that is made industrially is sodium
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Cbse-spot.blogspot.com 1 Class IX Chapter 15 – Probability Maths Exercise 15.1 Question 1: In a cricket math‚ a batswoman hits a boundary 6 times out of 30 balls she plays. Find the probability that she did not hit a boundary. Answer: Number of times the batswoman hits a boundary = 6 Total number of balls played = 30 Number of times that the batswoman does not hit a boundary = 30 − 6 = 24 Question 2: 1500 families with 2 children were selected randomly‚ and the following data were
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introduced Sulfur Coated Urea basic information included Sulfur Coated Urea definition classification application industry chain structure industry overview; Sulfur Coated Urea production and sales by manufacturers by technology by regions or countries‚ and also introduced global key manufacturers manufacturing bases and capacity distribution‚ Sulfur Coated Urea product specification‚ manufacturing process‚ product cost structure etc. then statistics Global and China key manufacturers Sulfur Coated Urea
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Oxygen (O) Human beings obtain this element from the air. It enters a person’s bloodstream through the lungs. The blood carries oxygen to the cells of the body. In the cells‚ oxygen combines with chemicals obtained from food. Energy produced during this process makes it possible for each cell to perform its function in the body. Also‚ oxygen atoms are present in water and water is essential to all life. It is present in many organic compounds. While oxygen is necessary for life‚ oxygen as ozone
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Sulfur is a poor thermal conductor‚ hence the changes can overlap one another if the heating is too fast. It is difficult to heat slowly enough using a Bunsen burner – hence the use of an oil bath. Crystalline sulfur consists of puckered S8 rings in the shape of crowns. These can be packed together in two different ways – to form rhombic crystals and to form needle-shaped monoclinic crystals‚ as shown below: Below about 96 °C‚ rhombic sulfur is the more stable allotrope
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that’s to be expected. Determination of the Molecular Mass/Molecular Formula of Elemental Sulfur Although this experiment didn’t go as well as I would have liked‚ there seemed to be some problems with the interpretation of the data as they were obtained‚ so I thought I’d demonstrate how to do this calculation. Elemental sulfur has a molecular formula of S8 (there are 8 sulfur atoms in a molecule of sulfur‚ just like there are 2 hydrogen atoms in a molecule of hydrogen). So‚ the purpose of this experiment
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BNL-73894-2005-CP Sustainable Development in Kazakhstan: Using Oil & Gas Production by-Product Sulfur for CostEffective Secondary End-Use Products P.D. Kalb‚ S. Vagin‚ P.W. Beall‚ B.L. Levintov Presented at the REWAS 2004 Global Symposium on Recycling‚ Waste Treatment and Clean Technology Madrid‚ Spain September 2004 Environmental Sciences Department Environmental Research & Technology Division Brookhaven National Laboratory P.O. Box 5000 Upton‚ NY 11973-5000 www.bnl.gov Managed
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attributes and one attribute (quality) is the class.Theattributes considered are: 1 - fixed acidity‚ numeric 2 - volatile acidity‚ numeric 3 - citric acid‚ numeric 4 - residual sugar‚ numeric 5 – chlorides‚ numeric 6 - free sulfur dioxide‚ numeric 7 - total sulfur dioxide‚ numeric 8 – density‚ numeric 9 – pH‚ numeric 10 – sulphates‚ numeric 11 – alcohol‚ numeric 12 – R/W‚ nominal – R= red‚ W = white Class: quality (score between 0 and 10) Software used - WEKA 3.6.9 A data
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allotropic forms: orthorhombic‚ monoclinic and amorphous. The orthorhombic form is the most stable form of sulfur. Monoclinic sulfur exists between the temperatures of 96°C and 119°C and reverts back to the orthorhombic form when cooled. Amorphous sulfur is formed when molten sulfur is quickly cooled. Amorphous sulfur is soft and elastic and eventually reverts back to the orthorhombic form. Most of the sulfur that is produced is used in the manufacture of sulfuric acid (H2SO4). Large amounts of sulfuric acid
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