Today‚ many countries are depending more and more on nuclear energy to produce electricity. Although‚ nuclear energy can bring many benefits‚ such as nuclear fission‚ which releases no carbon dioxide‚ it also brings many risks to many countries that use nuclear energy. This was proved‚ in many disasters that nuclear energy caused years ago‚ like the Chernobyl Disaster in April 26‚ 1986‚ which was said that‚ “the radiation released was to be 200 times that of Hiroshima and Nagasaki nuclear bombs
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Assessment 7 Question 1 of 12 The equilibrium constant Kp for the reaction CO(g) + Cl2(g) ↔ COCl2(g) is 5.62 x 1035 at 25°C. Calculate ΔGf° for COCl2 at 25°C. (ΔGf° for CO(g) = –137.3 kJ/mol at 25°C) PRIVATE "<INPUT TYPE=\"radio\" NAME=\"null_12_0\" VALUE=\"3\" DISABLED>" MACROBUTTON HTMLDirect A. –66.7 kJ/mol PRIVATE "<INPUT TYPE=\"radio\" NAME=\"null_12_0\" VALUE=\"1\" DISABLED>" MACROBUTTON HTMLDirect B. 188 kJ/mol PRIVATE "<INPUT TYPE=\"radio\" NAME=\"null_12_0\"
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CHAPTER-23 HW. Rahaf AlBathi 121114 Question 1 The electron configuration of a Ni2+ ion is: | A) [Ar]4s23d8 | | B) [Ar]4s23d6 | | C) [Ar]3d8 | | D) [Ar]3d6 | Question 2 The Fe3+ ion has _____ electrons in 3d orbitals. | A) 6 | | B) 5 | | C) 4 | | D) 3 | | E) 2 | Question 3 A ligand is: | A) a molecule or ion that has at least one lone pair of electrons | | B) a nucleophile | | C) a Lewis base | | D) part of a coordination compound |
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xa.yimg.com/kq/groups/9534928/992196434/name/1.pdf by WE GORDON - Cited by 8 - Related articles reaction of sulfamic acid with nitrites is practically instan- taneous‚ and only ... differences between the sulfamate ion and the sulfate or chloride ions (12). T. [PDF] Method 9010C - US Environmental Protection Agency www.epa.gov/osw/hazard/testmethods/sw846/pdfs/9010c.pdf the distillation‚ nitrate and nitrite will form nitrous acid‚ which will react with some organic
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BIOPOL Biopol is a biopolymer that is an environmentally friendly biodegradable plastic made from renewable resources (made naturally in plants from starch and glucose). Biopol is the brand name for a group of biopolymers often called PHAs or PHBs. The continual use of petroleum to make polymers for plastic will eventually run out and hence Biopol was introduced as a polymer replacement for petroleum. It is made from an organic substance known as Alcaligenes eutrophus which is a microorganism.
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Arenes The aromatic hydrocarbons also have the name arenes. They contain in their molecule one or more cycles made up from 6 carbon atoms. When the molecule is formed out of a single cycle‚ the hydrocarbons are mono nucleuses; when the molecule contains more than one cycle‚ the hydrocarbons are poly nucleuses. The simplest aromatic hydrocarbon‚ benzene‚ is compound out of just one such cycle; its formula is C6H6. The representation of benzene through a cycle of 6 carbon atoms with 3 double bounds
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Introduction Silver is a chemical element with atomic number 47 and symbol Ag. It is white‚ soft‚ mallable and ductile metal slightly harder than gold. Silver is extremely flexible‚ this means that it can be converted into both flat sheets and electrical wire. This makes silver is an ideal metal for all kinds of industrial use. Silver occurs in lead‚ Zinc and copper ore deposits. Lead ore is the main source of Silver. In fact‚ 75% of the resources in the world are found in association with other
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1) Calculate the value of the gas law constant R when pressure is in atm‚ volume in Liter and temperature in Kelvin. Given R = 8.314 Jmol‐1K‐1‚ 1 atm = 1 .01325x105 Nm‐2‚ 1m3 = 1000 L J R = 8.314 mol x K = R = 8.314 2 m x mol x K R = 0.082 atm x L mol x K 1.01325 x 10 2 m x mol x K 1 x Nxm = mol x K 3 Nxm 3 Nxm 5 atm Nm-2 x 1000 L 3 m Reporting computed data • Multiplication and Division 5.02 x 89.665 x 0.10 = 45
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6.05 Logan Hotaling Materials Needed: 1. Alka-Seltzer 2. Glass 3. Water 4. Timer Procedure: 1. First you need to fill a glass up with 8oz of water and have it be 25 degrees Celsius. 2. Then you drop the Alka-Seltzer in the water and time how long it takes it to dissolve in the water. 3. Then we need to make the temperature go up then we need to drop the Alka-Seltzer in the water again and see how long it takes it to dissolve with the new temperature. 4. Now
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Chocolate is made from the cacao bean. According to Rodney Lipson‚ “Cacao has been a cultivated crop for at least three thousand years‚ probably quite a bit more. The people who first utilized Cacao were the inhabitants of what is now Venezuela” (Lipson) This group of people would eventually spread the cacao bean in northwestern South America. Cacao was clearly highly valued by these people and they spread it northward through trade with their neighbors. It was probably the Maya‚ over 1500 years
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