Candace Henson Mr. Gordon English 1101 March 30‚ 2012 Mandatory Drug Tests Millions of businesses require people to take drug tests before they are hired. I believe that this should keep happening. Jobs that don’t require drug tests have the risk of insurance problems‚ the health of their employees‚ how it affects their work‚ and how they treat customers and other employees. Drugs alter the way your brain processes information and makes you think differently than you normally would. They
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Flame Test Laboratory Report Introduction The purpose of this lab is to observe and identify metallic ions‚ using flame tests. The traditional flame test originated when Robert Bunsen invented the Bunsen burner to test two new alkali metals he and his partner had discovered. “A flame test is an analytic procedure used in chemistry to detect the presence of certain elements‚ primarily metal ions‚ based on each element’s characteristic emission spectrum” (Flame Test 1). Using this test‚ an element
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Flame test: - Clean wire loop - Dip the tip of the wire loop into solution (If solid‚ dip the tip in DIW then dip the soaked wire loop in to the solid) - Proceed to placing the tip into fire (from Bunsen burner) - Observe - Na+ = bright orange -Cu2+ = green - K+ = Violet (Can be masked by Na+) - Ca+ = Brick Red - H4N+ = no color Cobaltnitrite test for K+: -Heat NH4+ off -In a small test tube/vial‚ or spot plate and place 10-15 drops of solution to test -Then add a drop of 6M HAc and
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Psychometric Tests Used in Employee Selection Introduction As we all know‚ selecting the right kind and appropriate employees are key elements of business effectiveness and successful management. In order to choose the right person for the job‚ many managers take ability and personality into consideration and use many methods‚ such as letters of recommendation‚ psychometric tests‚ interview etc. to do so. Recently‚ psychometric tests have become increasingly popular as parts of an employer’s
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contain the same compound. You may try some of the followings: * Dissolving in water * Dissolving in different chemical solution * Heating both substance to see if they come out with different results * Doing the flame test for both solution to see if they can come out with different results * etc * b. Would it be easier to prove that the compounds are the same or to prove that they different? Explain your reasoning. It is easier to prove that they
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Synthesis of 1-bromobutane from 1-Butanol using the SN2 Reaction Abstract: The objective of this experiment is designed to study the synthesis of 1-bromobutane from 1 butanol using a SN2 reaction.. The product will then be analyzed using a flamed loop test by use of fire. Reaction Mechanism: CH3CH2CH2CH2—OH H+ CH3CH2CH2CH2— +OH2 Br- CH3CH2CH2CH2—Br + H2O 1-butanol
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The percent change in mass between the total mass of 10 un-popped kernels and total mass of 10 popped kernels was approximately 18.83 %‚ which is also the same for the percent change of mass between the 1 un-popped kernel and 1 popped kernel. The reason why there’s a percent change in mass is due to the experiment being done in an open system‚ which is a systematic error. The open system is a systematic error because during the period of time to measure the mass of the popped kernels‚ the escaped
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Argument: Random Drug Testing in High schools Many high schools across the country have brought much attention to the idea of giving random drug tests to students in high school. The newfound interest in student drug testing may be as a result of recent polls‚ which have shown an increase in drug use among high school students. Many teachers‚ parents‚ and members of school comities are for the drug testing‚ while most students and some parents feel that this would be a violation of students
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operate it efficiently. Only when the parts of an apparatus are known well to the user can it be manipulated well. Answers to Questions:6 1. Give the composition of the deposit on the porcelain dish when it was held over a luminous (“colored” flame). Answer: _____________________________________________________________ 2. Considering that butane (C4H10) is the most common component of liquefied petroleum gas‚ show a simple word equation for the reaction. Answer: ____________
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involved and inspired to work hard. There were four candles which burned slowly. The first candle said‚ "I Am Peace‚ but these days‚ nobody wants to keep me lit." Then Peace’s flame slowly diminished and went out completely. The second candle said‚ "I Am Faith‚ but these days‚ I am no longer indispensable." Then Faith’s flame slowly diminished and went out completely. Sadly the third candle spoke‚ "I Am Love and I haven’t the strength to stay lit any
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