Week 5 Individual Work Stacy Grice Everest University CJE 1600-12 Criminal Investigations Professor Stevie Hayes August 16‚ 2013 There is a big difference between an interview and an interrogation. The main purpose of an interview is to obtain information and should be done in a location where the person being interviewed is mentally and emotionally relaxed. Most of the time someone would be interviewed in their home or a park‚ where they would feel relaxed. Most of the time you interview
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Quarries Topic Seven Accident and Incident Investigation Objectives of this Section • To define the reasons for investigating accident and incidents. • To outline the process for effectively investigating accidents and incidents. • To facilitate an effective investigation. Accident Investigation • Important part of any safety management system. Highlights the reasons why accidents occur and how to prevent them. • The primary purpose of accident investigations is to improve health and safety performance
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+ R’X R O R’ + NaX Ar O Na + RX Ar O R + NaX Involves a nucleophilic substitution reaction. Halide ion is displaced by the alkoxide or phenoxide ion. Gives best results when 1o alkyl halides are used. Mechanism is SN2. Alkoxides may be prepared by reacting an alcohol with NaH or by reacting an alcohol with Na metal. Phenoxides may be prepared by reaction of phenols with NaOH ROH + NaH ROH + Na ArOH + NaOH RO Na - - + + H2 RO Na + + 1/2
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Stoichiometry of a Precipitation Reaction March 20‚2013 Amber McCollum Introduction Stoichiometry is a branch of chemistry that deals with the quantitative relationships that exist among the reactants and products in chemical reactions To predict the amount of product produced in a precipitation reaction using stoichiometry‚ accurately measure the reactants and products of the reaction‚ determine the actual yield vs. the theoretical yield and to calculate the percent yield. The equation
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conduct all serious administrative investigations‚ including but not limited to officer-involved shootings‚ in-custody deaths‚ alleged constitutional violations‚ allegations of racial profiling or discriminatory policing or racial prejudice‚ dishonesty‚ drug use‚ sexual misconduct‚ cases handled for other jurisdictions‚ interagency cases‚ and cases referred directly by the agency head or command staff. Internal Affairs should also conduct all administrative investigations of allegations of misconduct that
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Title: Experiment 17‚ Reaction kinetics – Determination of the activation energy of the reaction between oxalic acid and potassium permanganate. Objective: To determine the activation energy of the reaction between oxalic acid and potassium permanganate. Introduction: Chemical kinetics is the study of chemical reaction rates‚ how reaction rates are controlled and the pathway or mechanism by which a reaction proceeds from its reactants to its products. Reaction rates vary from the very fast‚ which
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and industrial applications. Citric Acid is one of the organic acids commonly used as a chelating agent. It is considered an excellent chelating agent that binds metals. It is used to remove lime scale from boilers and evaporators. It can be used to soften water‚ which makes it useful in soaps and laundry detergents. By chelating the metals in hard water‚ it lets these cleaners produce foam and work better without need for water softening devices. Citric acid is the active ingredient in some bathroom
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will cause an increase in the reaction rate (Bennett and Frieden‚ 1969).
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Aim: This experiment will aim to show how the amount of substrate affects the rate of the reaction. Hypothesis: In this experiment I think the amount of substrate will simply increase the reaction. As I increase the surface area of the potato the gas given off from the reaction will increase. Therefore to sum things up‚ my hypothesis is when the Independent variable increases so will the dependant variable. Independent variable: - Surface area of potato Dependant variable: - Gas Controlled
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E-mail: sales@ibo.org Printed in the United Kingdom by the International Baccalaureate Organization‚ Cardiff. 3016 Contents Introduction The Historical Investigation: Guidance for Teachers Frequently Asked Questions The Historical Investigation: Guidance for Students The Written Account Outlines for the Historical Investigation
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