user. Mr. S is a fifty year old man who has had a prior substance abuse to methamphetamines and a history of violence resulting in incarcerations. After extensive tests‚ however; Mr. S did come up negative for HIV‚ gonorrhea‚ hepatitis‚ and chlamydia which would make one believe there is no necessary connection between disease and synthetic drug use/abuse. Mr. S’ case with synthetic drug abuse did‚ however; show a dependency for the substance. The case report tells how each of the three times Mr.
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drugs that the substance is likely to be. These types of tests are useful when they provide positive results and when they provide negative results‚ since the forensic scientist can then rule out certain types of drugs from the possibilities. 3.) Color tests involve introducing a chemical reagent to the drug and observing whether or not the material changes color. They are used to determine whether a drug is present at the scene. 4.) Microcrystalline tests involve exposing the substance to a reagent
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is one that affects only the physical properties of a substance‚ while a chemical change alters a substance at the molecular level. Physical Properties: A property that can be observed or measured without changing the chemical identity of the substance. Physical properties can be categorized as either intensive or extensive. Reactivity: An element or compound’s reactivity is its ability or capacity to react‚ or bond‚ with another substance. As you continue through this course‚ you will observe
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Cited: Altschuler‚ David‚ Troy Armstrong‚ and Doris MacKenzie. "Reintegration‚ Supervised Release‚ and Intensive Aftercare." US Dept of Justice: Office of Juvenile Justice and Delinquency Prevention (1999) * Dembo‚ Richard. "Introduction." Substance Use and Misuse 40 (2005) 879-85 * Frischer‚ Martin‚ et prevalence of Problematic Drug Misuse in Great Britain." Addiction 92 (2001): 1465-76 * Gorman‚ DM‚ Li Zhu‚ and Scott Horel violence." Drug and Alcohol Review 24 (2005): 507-13 * Gunderson‚
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IS MATTER AROUND US PURE matter Pure substance Element Compound Mixture Homogenous Heterogeneous colloid Suspension True solution MATTER Everything in the Universe is made up of MATTER PURE SUBSTANCE The substance which contains same kind of Atom or Molecule i] element A pure substance which contain same kind of Atom ii] compound A pure substance which contain same kind of Atom or Molecule but made up of different Atoms through a Chemical bound Mixture Mixture are constitutor
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Substance abuse and dependency persist as a major health and social concern in America. Author Joseph A. Califano‚ a former secretary of Health‚ Education‚ and Welfare notes‚ “it is hard to find an American family or circle of friends that substance abuse has not touched directly (Califano‚ J. A.‚ p. 1‚ 2008).” Califano further explains that although Americans are 4 percent of the world’s population‚ Americans consume 65 percent of the world’s illegal drugs. Furthermore‚ one in four Americans will
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Pick any issue of concern today and give it a critical study and look at it from: a) Christianity point of view. b) Law of the land. DRUG AND SUBSTANCE ABUSE. INTRODUCTION. DEFINITION. Drug. 1) A drug is any chemical you take that affects the way your body works. Example: alcohol‚ caffeine‚ aspirin‚ nicotine etc. 2) A drug is a substance which may have medicinal‚ intoxicating performance when taken by a human body. Drug abuse. 1) It is the use of illegal drugs‚ the misuse of prescription
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Toxicology ENV/410 November 3‚ 2014 Environmental Toxicology Every day‚ each and every individual is exposed to some form of toxicity. This could be in the form of toxic substances‚ toxic chemicals‚ or even toxic pollutants in the atmosphere. There are many materials within communities that could prove toxic and hazardous. Many of these substances pose great health concerns. Toxic chemical exposure in the United States can prove burdensome; especially in low-income communities. Most communities are exposed
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based on the unique properties of each component. Using these separation techniques‚ each substance was extracted and the composition of unknown # 12-Green was 16% Fe‚ 15% NH4Cl‚ 59% SiO2‚ and 9% NaCl with a 1% uncertainty due to the loss of 0.0369g of the initial mass. Introduction A mixture is two or more substances (elements and/or
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Lab Report Separation of a Mixture of Sand and Salt Goal(s): To separate a mixture of sand and salt and to find the percent of each component by mass of each mixture Background Theory: A mixture is a combination of two or more pure substances in which each pure substance retains its individual chemical properties. Mixtures can be separated by physical processes such as filtration and evaporation. Filtration is a process where solids and liquids can be separated. The liquid that passes through the filter
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