are called ___________________ . A. molecular ions B. free atoms C. radicals D. electrophiles _____ 2. Identify the type of the following reaction: [pic] A. elimination B. substitution C. addition D. rearrangement _____ 3. Consider the following reaction. Which species is the nucleophile? [pic] ( I ) ( II) ( III ) A. I only B. II only C. III only D. none
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risks can occur when hemolytic transfusion reaction to blood given that is not compatible with the patient’s blood type (Torphy, 2012). Fever and chills could occur after receiving blood and immune reaction can occur as well. The procedure for blood transfusion is done in various steps. After blood has been collected from donor, blood is transferred to blood banks where they are screened for any infectious disease, blood type, count, and any harmful reactions. Blood types include A, B, AB, or O.
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understanding of chemical reactions, reactants and products; (g) Represent chemical reactions by word equations; (h) Convert word equations to balanced chemical equations; (i) Write and balance chemical equations 3. CHEMICAL REACTIONS IN GENERAL Students should be able to: (a) Describe the reaction of selected metals (sodium, magnesium, iron and copper)with oxygen; (b) Describe the reaction of selected metals with water and/or steam; (c) Describe the reaction of metals with dilute acids;
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After completing the experiment, it was concluded that the Grignard reaction did not happen, and the diphenylmethanol was not formed. This experiment was not successful mainly because no Grignard reagent or tiny amount of Grignard reagent was produced or active prior to addition of benzaldehyde. By the end of the lab, only berry-redish solution was produced without any solid, this is a physical evidence of not producing any diphenylmethanol, because diphenylmethanol is white crystal. Also, after
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or catalyze, chemical reactions. The molecules at the beginning of the process are called substrates and the enzyme converts these into different molecules, called products. Almost all metabolic processes in the cell need enzymes in order to occur at rates fast enough to sustain life.[1]:8.1 The set of enzymes made in a cell determines which metabolic pathways occur in that cell. The study of enzymes is called enzymology. Enzymes are known to catalyze more than 5,000 biochemical reaction types.[2] Most
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the surface area the faster the rate of reaction Why did you choose your hypothesis? The reason I have chosen my hypothesis is because large surface area of the tea bag will contain more molecules which means the rate of reaction will happen faster. For example the pyramid due to it 3D shape provides more sides for diffusion to take place and more area in the middle for the tea molecules to move around which will make them escape quicker so the reaction will happen faster. 2 web sites I
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catalase in the chicken liver is exposed to hydrogen peroxide, it will cause a chemical reaction. This reaction will result in the destruction of hydrogen peroxide in the chicken liver, which is harmful to the cells; the enzyme catalase works best in acidic solutions and enzymes are denatured in very high temperatures (boiling). * Method of measuring enzyme activity: observation of normal catalase reaction, the effect of temperature on catalase activity and the effect of pH on catalase activity
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energy changes and standard free energy changes in biochemical reactions. * Phosphoryl group transfers and ATP; * Free-energy change for hydrolysis of ATP and other phosphorylated compounds and thioesters. * Role of ATP: phosphorylation, * pyrophosphorylation and adenylation, * assembly of informational macromolecules, * active transport and muscle contraction. * Biological oxidation-reduction reactions; * flow of electrons * dehydrogenations
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Evaluation of L – Proline as a Catalyst for an Asymmetric Aldol Reaction Abstract This reaction is divided into two parts. In the first part acetone, L – proline and 4 – nitrobenzaldehyde are reacted to give (R)-4-hydroxy-4-(4-nitrophenyl)butan-2-one as the major product along with (S)-4-hydroxy-4-(4-nitrophenyl)butan-2-one. The identity of the product is confirmed by IR spectra of the product which gives peaks at 1073.94 cm-1, 1330 cm-1, 1515.05, 1600.13 cm-1, 1708.25 cm-1, 2930.82 cm-1and broad
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Review of Transfusion-Associated Babesiosis in the United States: A Description of Cases • Presentation of the Information – 4 o Information was presented in a concise and clear manner and the topic was well expanded upon. The data “flows” well and is able to provide a broader picture of the angle that the authors were trying to focus their research on. • Method of research – 3 o The methodology used to perform the research was acceptable for the research type conducted
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