Chapter 1- Observing Matter 1.1 The Study of Chemistry * Chemistry is the study of matter and its composition * It is what happens when matter interacts with other matter Chemistry: A Blend of Science and Technology * Scientists develop models‚ conduct experiments and seek patterns * They work on discoveries of other scientists from before * Chemical techniques and processes were invented by early chemists (making medicines‚ growing crops‚ shaping metals‚ glassware
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a mixture. After separation‚ you can observe the different colors that make up a particular color of magic marker ink. You can also calculate a ratio Rf‚ which compares how far each compound traveled to how far each solvent (substance that dissolves another substance) traveled during the experiment. Rf = Ds/Df Ds = Distance traveled by the compound Df = Distance traveled by the solvent Materials: coffee filter‚ tape‚ rubbing alcohol‚ water‚ 3 different color magic markers (not permanent);
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Reagan Schuller Substance dualism is the concept that there are two different substances; mind‚ or mental substance‚ and body‚ or physical substance. Descartes’s states that the mind does not depend on the body in order to exist and are entirely distinct from each other. Descartes’s version of dualism gives a rise to the interaction problem because it opens the door to the question of “How can the mind control the body if the mind is not physical?” In other words‚ can mental events explain the causation
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Nelson Day: 347-364-8393 773 Concourse Village East #24-K Evening: 718-538-8765 Bronx‚ NY 10451 mnelson918@gmail.com SUMMARY OF QUALIFICATIONS Strong commitment to preserving the mental health of people striving for recovery from substance abuse. Proven organizational‚ interpersonal‚ and communication skills with the ability to function in a fast pace setting. Exceptional problem solving‚ good planning and computer skills with proficiency in Microsoft Office‚ MS Word‚ Excel‚ Access
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observations‚ programs such as D.A.R.I. have been used to treat drug addicts and alcoholics and deemed effective for its purpose. According to Sun‚ relapses are frequent with individuals who do not obtain the proper help in order to overcome alcoholism and substance abuse. Her research sought to identify various factors that caused people to relapse. She identified four major themes that led this occurrence. They included low self-worth‚ interpersonal conflicts‚ the use of networking‚ and a lack of coping skills
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describes each observation. From observing how each substance reacts with one another‚ a conclusion that states that one was miscible and the other two systems were immiscible can be made. Methanol was a polar molecule while pentane was nonpolar. This matches the hypothesis which states that like dissolves like‚ polar cannot mix with nonpolar. Ex. oil and water cannot mix because water is polar while oil is nonpolar. The third system allowed 3 substances to be ranked from least to a greater polar molecule
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2/11/2009 Purpose The purpose of this experiment is to determine the Molar Mass of an unknown substance using its freezing point depression. Introduction There are two types of mixtures; homogenous and heterogeneous. Homogenous mixtures have components that are uniformly mixed‚ while heterogeneous mixtures do not. A solution is a homogenous mixture that has two or more substances. A solution is mainly made of a solvent‚ while the solute is the smaller part of the solution. A solution’s
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Which are worse- Legal or Illegal Drugs? Drugs are a common part of everyday life. In fact‚ it is highly likely that there are drugs of some sort in your cupboard. They are classified into two categories: legal and illegal. Legal drugs include alcohol‚ tobacco‚ and pharmaceutical drugs‚ while illegal drugs include marijuana‚ amphetamines and heroin. The media often portrays a biased‚ negative view on illegal drugs‚ however legal drugs often have the same effects as illegal drugs‚ if not worse
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are common to all chemical addictions‚ including non-drug addictions such as pathological overeating (Leshner‚ 2007). Environment plays a key factor in an addicts recovery. Dennis and Scott found that patients who experienced higher levels of substance use and also had environmental obstacles in recovery‚ such as other individuals using drugs in the home of the addict‚ were far less likely to succeed in recovery. Further‚ an addict who has just begun recovery is far more likely to relapse early
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Since 1982‚ schools around the world have created programs to try and help youth avoid drug and alcohol use. In the article‚ “Just Say No‚” it narrows down the programs to just D.A.R.E. Even though the program D.A.R.E is a great idea‚ studies have shown that it’s not as effective as they thought it would be (Liliendfeld & Arkowitz‚ 2014). D.A.R.E means Drug Abuse Resistance Education. This program came about by the Los Angeles police department in 1983. About 75% of the U.S. and about 43 countries
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