there are other children living in families in which there is illicit drug abuse. Evidence shows that children who have experiences with parents who have drug or alcohol problems tend to have behavioral problems or abuse either substance themselves. (Center for Substance Abuse Prevention‚ 2003) Children with an addicted parent are also at a higher-than-average risk for problems in school. Some effects that are caused by having parents like these are emotional disturbances such as depression‚ and
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melting point of an unknown substance by comparing it with two known samples. Melting point is a temperature in which a substance changes from solid state to liquid state. Melting points are used to determine whether the given substance is pure or not. Substances that melt sharply‚ less than 1-2°C indicates pure substance. Melting point can also be used to identify an unknown substance‚ by comparing its melting point with known substances melting point. If the substances are the same‚ the mixture
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reason that it is important to be aware of and question addiction theories. One contemporary psychoanalytical view of substance abuse is that it is a defense against anxiety (Thombs D 2006). Addicts often abuse alcohol and other substances to guard against anxiety and other painful feelings like shame‚ guilt‚ loneliness and depression. Psychological problems including substance abuse disorders are viewed as a result of inhibited ability to make authentic‚ meaningful‚ and self directed choices about
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transformation of chemical substance into another chemical substance is known as Chemical Reaction. For example: rusting of iron‚ setting of milk into curd‚ digestion of food‚ respiration‚ etc. In chemical reaction new substance is formed which is completely different in properties from the original substance‚ so in a chemical reaction chemical change takes place. Following are the signs of chemical reaction: (a) Change of state of substance. (b) Change of colour of substance. (c) Evolution of heat
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Chemical Reaction is a process that involves rearrangement of the molecular or ionic structure of a substance‚ as opposed to a change in physical form or a nuclear reaction. Reactant is a substance participating in a chemical reaction‚ especially a directly reacting substance present at the initiation of the reaction. A word equation is an equation where only the words of the products and reactants are given. It is used to describe chemical reactions using words. A skeletal equation is a chemical
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common physical property of the substance being red crystal grains. After heating the substance the sample turned into a light blue powder which was significant in identifying the compound. The average % H₂O Driven off was __% ‚which closer to that of the __% of CoCl₂•6H₂O‚ rather than the __% of CoSO₄•6H₂O. The percent error in the calculations was ______% . Through the trials involving Unknown B‚ it was confidently determined to be Al(SO4)3 •16H2O. The substance appeared white and powder-like before
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changing colour in the fall. A chemical reaction is the process that occurs when two or more substances combine to produce a chemical change. When a chemical reaction takes place‚ the change is indicated by one or more qualitative properties. The colour or odor could change‚ gas could be produced‚ a precipitate – a solid substance in a solution - could be formed‚ or energy could be absorbed or released. The substances initially involved in a chemical reaction are called reactants. When chemical reactions
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A chemical reaction is a reaction that happens everywhere.It is a process which includes one or many other substances.The substances are converted in to one or more different substances.The substances are one of either chemical elements or compounds.this chemical reaction rearranges the constituent atoms of the reactions to create different substance as products. The chemical reaction of heat on alka seltzer begins when the tablet enters the water.As soon as it does the tablet starts to dissolve
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Dumas Method Background of the Study Problem In this experiment‚ an unknown liquid is in need to be identified and one of the key factors to identify it is to determine its molecular weight. In order to determine the molecular weight of a particular substance which in this experiment’s case is a volatile liquid‚ the need to convert the liquid into a gas arises. The relation among the pressure‚ volume‚ temperature and the number of moles of a gas will be an important key in the conclusion of its molecular
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University of Phoenix/ HCA 250 The subject I choose for my Fianl paper was: Substance Abuse. The reason I choose this subject was because I have had a lot of experience with it. Substance Abuse is a very serious addiction that can happen to anyone. An addiction is any continued involvement with a substance or activity despite its ongoing negative consequences. It is also known as an addictive behavior that initially provides a sense of
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