Lecture No. 1 Chemical Kinetics 1.1 The Rate of a Reaction Chemical Kinetics is the area of Chemistry that is concerned with the speed‚ rate or mechanism at which a chemical reaction occurs. Reaction Rate is the change in the concentration of a reactant or product with time (i.e. M/s). It measures how fast a reactant is consumed and how fast a product is formed. 1.2 WRITING RATE EXPRESSIONS Consider the following hypothetical reaction. A + 2B ( 3C + D Rate = - rate
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Christine R. Rykhus L25966345 Book Critique Dating and the Single Parent Dr. Ken Nichols PACO 603 D02 Summary In the book Dating and the Single Parent Ron Deal walks the single parent through the process of dating again. This book is broken into three sections. Section one has five chapters and is titled “Getting Past the Butterflies and Warm Fuzzes.” In the beginning Deal starts with “Dating in a Crowd: Dating with Purpose.” (29) With this in mind the reader begins to understand you will
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Observing the Live Earthworm Kingdom Animalia is a diverse kingdom that contains many types of worms. The phylum Annelida includes segmented worms such as Earthworms‚ Clamworms‚ and Leeches. Earthworms play a huge role in the environment. They have two openings‚ a mouth and an anus. They feed through the mouthpharynxesophagus crop (stores food)gizzard (grinds food)intestineanus (excretion of waste). The hypothesis predicted for this lab is that Earthworms will respond differently when came in contact
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CHEMICAL MEDIATORS OF INFLAMMATION Cell derived mediators Mediator | Source | Function | Vasoactive amines | Histamine | Mast cells‚ basophil‚ platelet | Vasodilation‚ ↑ vascular permeability‚ endothelial activation | Serotonin | platelets | Vasodilation‚ ↑ vascular permeability | Eicosanoids | Prostaglandins | Mast cells‚ leukocytes | Vasodilation (PGD2‚PGE1‚E2 & PGF2-α)‚ pain (PGE2)‚ fever | Thromboxane A2 | | Promotes platelet aggregation‚ vasoconstriction | Prostacyclin
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RATE OF REACTIONS. The reaction rate (rate of reaction) or speed of reaction for a reactant or product in a particular reaction is intuitively defined as how fast or slow a reaction takes place. For example‚ the oxidative rusting of iron under the atmosphere is a slow reaction that can take many years‚ but the combustion of cellulose in a fire is a reaction that takes place in fractions of a second (right). Chemical kinetics is the part of physical chemistry that studies reaction rates. The concepts
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BIOLOGY 22 MODULE 1 – Chemical Basis of Life v2.0 * Levels of Organization – biological functions are ultimately based on the properties of atoms and molecules * Subatomic particles – neutrons‚ electrons‚ protons * Atoms * Compounds * Complexes of compounds * Organelles – bodies within cells that perform specific functions * Cell * Specific combination of organelles * Can metabolize and reproduce * Least elaborate living structure * Significance
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The book A Single Shard‚ by Linda Sue Park‚ is one of the best books I have ever read with the genre consisting of historical drama. Tree-ear‚ the main character‚ is a parentless‚ 12-year-old child who was raised under a bridge by a kind man with a crippled leg who went by the name of Crane-man. Despite this obviously poor life Tree-ear lived‚ he had one day that he looked forward to that he called‚ “throwing day” a day when a very skilled potter named Min spun a beautiful clay vase to Tree-ear’s
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Chemical Separation Introduction: The objective of this experiment was to extract the pigments from spinach leaves‚ perform Thin Layer Chromatography (TLC) on the spinach leaf extract‚ and then determine the best solvent mixture to use to separate the pigments in the extract. The pigments are located inside the chloroplast walls in the cells of the spinach leaves. In order to obtain the pigments the cell walls must be broken down thus exposing the pigment containing chloroplasts. Upon
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(a) CH3CH2BrC=CBrCH3 (b) (CH3)2C=C(CH3)2 (c) CH3CH2 lC=ClCH2CH3 (d) CH3ClC=CHCH3 (e) (CH3)2C=CHCH3 32) Oxalic acid has the structural formula. Is cis-trans isomerism possible for oxalic acid? Explain your answer. No; Free rotation about the single C-C bond prevents it. 33) 2-methyl propene has the Lewis structure: Is cis-trans isomerism possible for this oxalic acid? 34) For each pair of bonds‚ predict which will be the shorter. (a) B-Cl or Ga-Cl (b) C-O or Sn-O (c) P-S or P-O (d) the
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bDATES PERFORMED: JANUARY 8‚ 2013 CHEMICAL EQUILIBRIUM D.M. TAN1 AND P.B. ALEGRO2 1DEPARTMENT OF MINING‚ METALLURGICAL‚ AND MATERIALS ENGINEERING‚ COLLEGE OF ENGINEERING 2 INSTITUTE OF CHEMISTRY‚ COLLEGE OF SCIENCE UNIVERSITY OF THE PHILIPPINES‚ DILIMAN QUEZON CITY‚ PHILIPPINES RECEIVED JANUARY 15‚ 2013 RESULTS AND DISCUSSION A. Iron- Silver Equilibrium The first part of the experimentation focuses in the iron-silver system. Silver nitrate (AgNO3) was added to ferrous
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