Introduction Our world today is infested and becoming way more dangerous with all these chemicals. In an effort to increase productivity and confine bigger market shares‚ the use of fertilizers‚ pesticides‚ food additives such as dyes and additives has become so common that artificial ingredients are now outnumbering natural ingredients on many food content labels‚ and it is the opinion of many experts that this forever increasing use of artificial fertilizers‚ pesticides‚ and chemical additives
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Steel Making Methods | Advantages | Disadvantages | Basic Oxygen Furnaces | * Very high production rates and low residual element * Does not burn fuel | * Good efficiency requires large amount of pig iron to continue production. * Requires costly filtering process due to high levels of pollutants produced. * High refurbishing costs. * High dependence on blast furnace/coking. | Electric Arc Furnaces | * Minimal emissions/pollution. * Filtering of scrap not necessary. * Easy
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Quiz Top of Form Previous PageNext PagePage 1 of 4 Note: It is recommended that you save your response as you complete each question. Question 1 (2.7 points) The combustion of butane‚ C4H10(g)‚ produces carbon dioxide and water vapor. In the balanced equation for this reaction‚ what are the coefficients of butane‚ oxygen‚ carbon dioxide‚ and water‚ respectively? Question 1 options: 2‚ 13‚ 4‚ 10 1‚ 6‚ 4‚ 5 1‚ 6‚ 8‚ 10 1‚ 13‚ 4‚ 5 2‚ 13‚ 8‚ 10 Save Question 2 (2.7
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Environmental pollution in Dhaka city INTRODUCTION: Pollution is an undesirable change in the physical‚ chemical or biological characteristics of air‚ water‚ soil or food that can adversely affect the health‚ survival or activities of human or other living organisms. The effects of water pollution are far-reaching and affect not only the environment‚ but human beings and animals as well. The pollution in Dhaka has reached alarming levels‚ threatening public health‚ ecosystems and economic
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well-known in the all around world’s wind power station-The Dabancheng wind station.A large amount of amount of windmills make people image Holland within can’t help.Except gas and electricity‚Xinjiang is rich in petroleum ‚coal‚gold‚copper‚nickel‚chromium salts and rare metals minerals.Xinjiang has 208.6 million tons of oil resources‚is china’s onshore oil 30%.Gas resource of 10.3 trillion m3 account for the China gas resource of 34%.The coal resource prediction is 2.19 trillion‚account china’s 40%
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Lye is a corrosive alkaline substance‚ commonly sodium hydroxide (NaOH‚ also known as ’caustic soda’) or historically potassium hydroxide (KOH‚ from hydrated potash). Previously‚ lye was among the many different alkalis leached from hardwood ashes.[1] Today lye is commercially manufactured using a membrane cell method. Solid dry lye is commonly available as flakes‚ pellets‚ microbeads‚ and coarse powder. It is also available as solution‚ often dissolved in water. Lye is valued for its use in food
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Exercise 7.3 (training!!!) 1. Find the oxidation numbers of the underlined elements in the following species. (a) (e) (i) (m) (q) (u) (y) 2. SO3 PbSO4 CoCl42CrO42SO32Ca(NO3)2 Co(NH3)43+ VO2+ CaH2 KMnO4 SCl2 N2 NaOH (c) (g) (k) (o) (s) (w) HCO3[Al(OH)4]MnO42NO2FeCl3 KOCl (d) (h) (l) (p) (t) (x) H2S2O7 H2O2 Cr2O72K2SO4 CH4 Pt(CO)4 Which of the following equations represent redox reactions? Specify the species being reduced in each case if applicable. (a) (b) (c) (d) NaI(s) + 2K(s) + 2NH3(g)
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it contains much vitamin A. By eating green tomatoes you will be gaining more protein. Tomatoes contain Lycopene‚ fiber‚ vitamin C‚ vitamin A‚ which are antioxidants‚ potassium‚ which lowers cholesterol levels‚ and blood pressure‚ vitamin K‚ and chromium. Tomatoes can protect your lungs from the negative affects of the polluted air we breathe. Tomatoes help preserve moisture levels in the body. In the summer or winter‚ when our skin is exposed to artificial heating or cooling‚ moisture levels in
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References: Bansal T K and Sharma H R 1992 Chromium removal by adsorption on rice husk ash. Indian J. Environ. Prot. 12 (3): 198201. D.M.Gedziora 1970‚Exhaust Silencer Journal on Flow Consideration in Industrial Silencer Design by George Feng S. Ristic and Tonkovic M 1986 Sorption of chromium (VI) on hydroxide iron oxides Z. Wass. Abwass. Forsch. 19: 186196. Prabavathi Nagarajan and Priscilla Prabavathi 2005 A Study
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Hydrogen Peroxide & Inorganic Peroxy Compounds Hydrogen Peroxide Hydrogen peroxide (H2O2) is the simplest peroxide (a compound with an oxygen-oxygen single bond). It is also a strong oxidizer. Hydrogen peroxide is a clear liquid‚ slightly more viscous than water. In dilute solution‚ it appears colorless. Reactions Decomposition Hydrogen peroxide decomposes exothermically into water and oxygen gas spontaneously: 2 H2O2 → 2 H2O + O2 This process is thermodynamically favorable. It has
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