CHAPTER 5 STATES OF MATTER INTERMOLECULAR FORCES Intermolecular forces are the forces of attraction and repulsion between interacting particles (atoms and molecules). Attractive intermolecular forces are known as van der Waals forces. van der Waals forces include dispersion forces or London forces‚ dipole-dipole forces‚ and dipole-induced dipole forces. A particularly strong type of dipole-dipole interaction is hydrogen bonding. Dispersion Forces or London Forces Observed between non-polar molecules
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CHEM 3305 - 001 Organic Chemistry 1 Dr Michael Findlater Spring Semester‚ 2013 Stereochemistry • Stereochemistry refers to the three-dimensional structure of a molecule. • As a consequence of stereochemistry‚ apparently minor differences in 3D structure can result in vastly different properties. • We can observe this by considering starch and cellulose‚ which are both composed of the same repeating unit. Stereochemistry of Starch and Cellulose Figure 5.2 • In cellulose
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Chapter 6 Tax matters 1、 Why have tax? The Collins Concise English Dictionary (1992. P 1383) defines the word “tax” as: “a compulsory financial contribution imposed by a government to raise revenue‚ levied on income or property‚ on the prices of goods and services‚ etc. and to levy a tax on (persons‚ companies‚ etc.)” (Clinton Alley‚ 2008). there are several reasons can explain the existence of tax: The main function of taxation is the fiscal one. It is through fiscality that taxes play their
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own and that there is “no [one] right answer.” Since constructivism can be found more clearly within specific content areas‚ it is wise to investigate the effectiveness and the realisticness through a given subject matter; this leads to asking the question: does teachers’ subject-matter knowledge play into the effective use of the constructivist theory? There is no known research that gives an answer to this question‚ only personal
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The Origin of the Universe As Told by the 20th Century Peoples of North America and other industrialized lands INTRODUCTIon The evolution of theories about the origin of the universe has surely proceeded at a rapid pace upon entering the 20th Century. New telescopic devices permitting people to see parts of the universe never before imagined‚ in new ways never before conceived‚ have advanced man’s theoretical capabilites on explaining the origin of the universe‚ a task that has been
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ESTERIFICATION SYNTHESIS OF PEAR OIL One of the major uses of Esterification (C(=O)-C-R) is forming compounds with different odors which can be used to make different synthetic and natural flavorings. Using the chemical and physical properties of organic compounds‚ an ester was catalyzed from the reaction of a carboxylic acid with an alcohol‚ producing an odor similar to that of pear oil. The mechanism of this Fischer- Esterification process is outlined as follows:
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09/06/11 Charismatic life Character Matters The English word “character” is from Latin root that means “engraved”. In the book says that character is the composite of virtues and values etched in that living stone‚ will define its true worth. In my point of view character is directly related to personality‚ which means the way to act. Character is the sum of virtue‚ vices and habits. God can teach us virtue‚ but we must want it. The word virtue derives from the Latin word for strength
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GROUP 2 EXPERIMENT 15 BSP2M ORGANIC CHEMISTRY LABORATORY MR. WILBERT MORALES Chemical Structure Physical Properties Hazards Acetonephenone Physical state and appearance: Liquid. (Liquid.) Odor: Not available. Taste: Not available. Molecular Weight: 120.16 g/mole Color: Colorless to light yellow. pH (1% soln/water): 7 [Neutral.] Boiling Point: 201.7°C (395.1°F) Melting Point: 19.7°C (67.5°F) Critical Temperature: Not available. Specific Gravity: 1.03 (Water
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effective and efficient in finding resources that will fit in to research needs. So let’s talk about what are some of the key differences between scholarly resources and popular resources. A scholarly resource is a resource that is published by a subject matter expert. It is a paper that is written by someone who is very familiar with the subject on hand. After a person writes the said paper it then goes through a peer review. A peer review is others that are experts in the field and weigh in on the paper
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Abstract In 1999‚ the Daewoo Group‚ one of the biggest transnational conglomerates‚ collapsed‚ committing a staggering $15.3 billion in accounting fraud in the process‚ the largest in world history. In 2006‚ its chairman was sentenced to eight years in prison and a disgorgement penalty of $22.7 billion. Daewoo’s problems‚ however‚ did not remain a case isolated to Korea and their mighty‚ family-controlled conglomerates called “chaebol.” Daewoo’s demise foreshadowed corporate scandals
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