the rate of decomposition of hydrogen peroxide.” Chemical equilibrium is the state of constant composition attained when opposing reaction rates become equal. There is an essential relationship between reaction rates and chemical equilibrium‚ one that we can describe quantitatively. At first thought‚ the connection may seem obscure - do we not need to be far from equilibrium to properly measure reaction rates? The dynamic nature of chemical equilibrium means that both forward and reverse reactions
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Physical and Chemical Changes Say you are presented with two beakers‚ beaker A and beaker B‚ each containing a white‚ powdery compound. * a. From your initial observations‚ you suspect that the two beakers contain the same compound. Describe‚ in general terms‚ some experiments in a laboratory that you could do to help prove or disprove that the beakers contain the same compound. You may try some of the followings: * Dissolving in water * Dissolving in different chemical solution
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THE CHALLENGES FACED BY TEENAGERS TODAY ARE SIGNIFICANTLY GREATER THAN THOSE FACED BY THE YOUTH OF THE PAST The generation of teenagers today are known to face challenges that are greatly different in comparison to those faced in the past. For example‚ Savannah Rivers‚ a girl who started using drugs and alcohol since she was 10‚ has been addicted since. As unusual and shocking this may seem‚ this is not the only story from the endless cases of underage drug and alcohol use. A number of teenagers
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Articles recently reported that Tim Cook (Apple’s new CEO) earned $378m in 2011 He inherited a global technology juggernaut‚ renowned for its creativity and innovation; a business with $90 billion in cash reserves (The Guardian). Yet there are serious problems at one of its key suppliers‚ Foxconn‚ where a recent mass suicide threat posed an ethical dilemma facing Apple and its new leader. The Telegraph reported [11th Jan 2012]: Around 150 Chinese workers at Foxconn‚ the world’s largest
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Introduction: A chemical reaction is formed of reactants and products. Reactants react with each other to give one or more product. Sometimes we can visualize observations that are characteristic of the reaction. Like for example a release of a gas (bubbles are formed) or a change of color or also the formation of a precipitate. Materiel needed: Test tubes Rack of test tubes Plastic droppers Beakers Procedure: We prepare 7 beakers of 7 different solutions (that we mark from 1→ 7)
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Observations of Chemical Changes Lab Report Expectations: Data Table 1: What you Expected to happen Well #/ Question Chemicals Reaction A NaHCO3 and HCI - C02 A bubble occurrence B HCI and BTB A deep yellow C NH3 and BTB A purple color D HCI and blue dye A deep blue E Blue dye and NaOCI A greenish color F NaOCI and KI A bright red G KI and Pb(NO3)2
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Education in Malaysia is an on-going effort towards further developing the potential of individuals in a holistic and integrated manner‚ so as to generate individuals who are intellectually‚ spiritually‚ emotionally and physically balanced and harmonious‚ based on the belief and devotion to God. An effort is designed to yield Malaysian citizens who are knowledgeable and competent‚ who possess high moral standards‚ and who are responsible and capable of achieving a high level of personal well-being
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Problems faced by students in current educational setup & their possible solutions 17 About the Author: Zara Saleem is one of the most talented students of Hajvery University‚ Lahore‚ Pakistan. She is the student of Final Semester‚ Pharm. D. | As we know that education is the backbone in the development of any nation‚ it is a fact that the countries with an effective system of education lead the world‚ both socially and economically. The key to development is good education system. Pakistan
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chemically convert the substance into nutrients. It usually involves mechanical manipulation and chemical action. Mechanical Digestion What is it? This type of digestion involves the mixing‚ grinding or crushing of large pieces of food into smaller places. Why does it take place? So that the food we consume is broken down into smaller pieces before we swallow it which in turn makes process of chemical digestion that takes place later on more effective because it works more efficiently on
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AND RECOVERY FROM CHEMICAL ADDICTION The Causes & Recovery From Chemical Addiction Dozier‚ Tommy O Argosy University/Atlanta The Causes & Recovery From Chemical Addiction 2 Chemical addiction is the least researched in the medical field. The problem is that chemical addiction is a growing epidemic in urban cities. Chemical addiction has many names‚ but everyone agrees that it is an enormous problem. Chemical addiction can be
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