follows‚ we concentrate on the second component only. © Drs. XO‚ PHB‚ CWR Octahedral Ligand Field (10.3.1 too detailed) Any electron in a d orbital is repelled by the ligand lone pairs (like charges…) and therefore has its energy increased relative to what it would be in the free metal ion. CHEM 241 Fall 2014 TM − p.2 The ligand lone pairs (negatively charged) are located on the x‚y‚z coordinate axes. IN ADDITION: An electron in a dx2-y2 or dz2 orbital is closer to the ligands
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use glucose for the proper functioning of their body. The energy is provided to the body by burning of glucose by the body mechanism. High chemical reactivity of sugar ( like aldehyde‚ keto and hydroxyl groups ) means that they are very reactive molecules. They prefer to react with other substance since with their high chemical reactivity. They will react with each other to become disaccharides‚ oligosaccharides and polysaccharides‚ such as maltose‚ sucrose‚ lactose‚ starch‚ glycogen‚ cellulose
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of nucleophile‚ catalyst‚ and leaving group. 3. Identify the order of acidity in substituted benzoic acids. 4. Identify the order of reactivity of derivatives of carboxylic acids. 5. Describe both the diene and dieneophile in Diels-Alder reactions. 6. Describe the process of ultraviolet light absorption by organic molecules. 7. Identify the order of reactivity of aromatic compounds in Electrophilic aromatic substitution. 8. Classify alcohols and amines as primary‚ secondary or tertiary. 9.
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these genetic bases and the roles that environmental factors play in the development and manifestations of these conditions will provide better methods of diagnosis and treatment” (Blumenthal). Blumenthal compares asthma to atopy and the skin test reactivity‚ the test for allergies by scratching the skin with chemicals of allergens. He speaks of the relatedness threw the similarities that they all share in chromosomal sites in atopy and asthma. It was also recorded in his research that even their phenotypes
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prepare acetanilide which could then be readily brominated to form a mono-brominated product‚ with the bromine positioned at either the ortho‚ meta or para position on the aromatic ring. Acetic anhydride is very reactive towards nucleophiles and this reactivity is the result of the difference in electronegativities of the carbon and oxygen atoms that are bonded in acetic anhydride. This difference in electronegativities causes one of the carbonyl groups in acetic anhydride to break its carbon-oxygen double
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of salts 8.12 Identification of ions and gases 8 Periodic table 9.13 Periodic trends 9.14 Group properties 9.15 Transition elements 9.16 Noble gases 9 Metals 10.1 Properties of metals 10.2 Reactivity series 10.3 (a) Extraction of metals 10.3 (b) Uses of metals 10 Air and water 11 Sulphur 12 Carbonates 13 Organic chemistry 14.4 Names of compounds 14.5 Fuels 14.6 Homologous series 14.7 Alkanes
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Katerina Baeza Hernandez | | | | | | | |Zn |Mg |Cu |Pb | | |(+) clear liquid but the |(+) a black spot appeared on|(-) no reaction occurred |(-) no reaction | |Pb(NO3)2
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ZINC Zinc is one of the natural elements on the periodic table. It was discovered in Germany in 1746‚ by Andreas Marggraf. The name is from the German‚ ‘zinc’‚ which may be derived from Persian‚ which means ‘sing’. The element was known to the Romans but they rarely used it. When it was first used it was recognized. Zinc has a specification of metal made from ore or another material a process of distillation by electrolysis. The atomic number for zinc is 30. The mass number is 65.39 mass units
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a metal oxide and carbon dioxide. The carbon dioxide gas can be detected using limewater. Limewater turns cloudy white when carbon dioxide is bubbled through it. Metals high up in the reactivity series - such as calcium - have carbonates that need a lot of energy to decompose them. Metals low down in the reactivity series - such as copper - have carbonates that are easily decomposed. This is why copper carbonate is often used at school to show these reactions. It is easily decomposed‚ and its colour
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CHM 2210 – Fall 2012 – Test 4 Name (print):_________________________ 1. What is the IUPAC name for the following compound? a) b) c) d) 3-methyl-1-penten-4-yne 3-methyl-1-buten-4-yne 4-methyl-4-penten-1-yne 4-methyl-4-buten-1-yne 2. What is the major organic product obtained from the following reaction? 2 equiv Br2 a) b) c) d) 2‚3-dibromobutane 2‚2‚3‚3-tetrabromobutane 2‚3-dibromobutene 2‚2-dibromobutane 3. What is the best choice of reagent(s) to perform the following transformation
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