C) 180° D) 60° E) 120° 12. The O-S-O bond angle in SO2 is slightly less than __________. A) 109.5° B) 120° C) 180° D) 60° E) 90° 13. The hybridization of orbitals on the central atom in a molecule is sp2. The electron-domain geometry about this central atom is __________. A) trigonal planar B) octahedral C) linear D) trigonal bipyramidal E) tetrahedral 14. There are
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12U Equilibrium Unit Test Multiple Choice K/U Identify the letter of the choice that best completes the statement or answers the question. ____ 1. When solid lead(II) phosphate is in equilibrium with its ions‚ the ratio of lead(II) ions to phosphate ions is which of the following? a. 1:1 d. 2:3 b. 1:2 e. 3:2 c. 2:1 ____ 2. In a saturated solution of silver phosphate‚ the concentration of silver ion is 4.5 10-4 mol/L. The Ksp of silver phosphate would be which of the following
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Explain the effects of the Purges? Introduction The Great Purge was a campaign of political repression in the Soviet Union orchestrated by Joseph Stalin from 1934 to 1939. It involved a large-scale purge of the Communist Party and government officials‚ repression of peasants and the Red Army leadership‚ and widespread police surveillance‚ suspicion of "saboteurs"‚ imprisonment‚ and arbitrary executions. 1st Para Scientists‚ Doctors and Engineers‚ were heavily targeted‚ imprisoned and killed.
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Abstract By adding HCl to 2-methyl-2-butanol‚ through the Sn1 mechanism‚ 2-chloro-2-methylbutane is formed. Water‚ sodium bicarbonate and NaCl(aq) were then added to the 2-chloro-2-methylbutane to remove any of the excess water from the reaction. To confirm‚ a successful reaction‚ AgNO3 was added to the 2-chloro-2-methylbutane. A white precipitate formation confirmed a successful Sn1 reaction. Introduction Nucleophilic substitution reactions such as Sn1 and Sn2 allow us to convert one functional
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Absorbance of Light vs. Concentration of Colored Solution Introduction: Performing this lab showed the importance of light in virtual drug screening because light can be used in a variety of ways to obtain different kinds of information in research. Light can be used to determine the concentration of DNA or protein in solution‚ tag different objects such as cells‚ protein structures‚ or bacteria in order to determine whether there is a large amount of a certain substance‚ and to determine the size
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Hooliganism The film Green Street Hooligans (2006) is about some young boys and their relation to hooliganism. In the film we meet Matt Buckner‚ who is getting wrongfully expelled from Harvard. He moves to London to his sister‚ Shannon‚ but gets dragged into the violent world of football and hooliganism. Matt’s sister is married to the earlier Major‚ Steve‚ who has a brother‚ Pete‚ which is now controlling their firm. (GSE) Matt visits his sister and Steve‚ when Pete is also there. Pete is forced
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ARTICLE: NEW GREEN TECHNOLOGY AND ITS BENEFIT 1.0 INTRODUCTION Malaysian must put a ‘price’ on carbon‚ set regulations and pour money into research and development and let Malaysian ingenuity meet the market force for clean energy. This strategy would not only help the world avoid the worst of climate change‚ it will end our dependence on hostile foreign regimes that we rely for oil. Everything that we would actually do in response to climate change would make us healthier as a country
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of C is: I II IV A) B) C) D) E) III V I II III IV V Ans: E Topic: Structure Elucidation 4. Compound X has the molecular formula C6H10. X decolorizes bromine in carbon tetrachloride. X also shows IR absorption at about 3300 cm-1. When treated with excess hydrogen and a nickel catalyst‚ X yields 2-methylpentane. The most likely structure for X is: A) B) C) D) E) Ans: D 243 Keghan Chapter 8 Topic: Structure Elucidation 5. An unknown compound‚ A
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Separation of a Mixture of Solids PURPOSE: The purpose of this lab is to familiarize ourselves with the techniques associated with separating a mixture of different solids. We will learn how the unique properties of substances can aid in this process and help us distinguish each pure substance from one another. DATA OBSERVATIONS CALCULATIONS CONCLUSION/DISCUSSION QUESTIONS A. How did your proposed Procedures or flow charts at the beginning of this experiment compare to the actual Procedures
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of the Upper Nepean Catchment. The following is a summary of factors that affect water quality. Water may contain several ions‚ namely anions and cations which are toxic to humans. Hardness is the scum on water surface from significant concentrations of calcium and magnesium ions. Total dissolved solids is the measure of dissolved solids that are ionic in water. Turbidity is the presence of suspended solids in water which reduces penetration of light‚ resulting in a decrease concentration of
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