...White Plains; The Birthplace of New York State The city of White Plains came into existence in 1683, became the seat of Westchester County since 1757. Men from Rye, procured 4,435 acres of land and named it White Plain. The battle of White Plains fought between General George Washington's crowd and British-Hessian troops near the Battle Hill marked the history of White Plains. White Plains is situated in the New York State of the United States with town of North Castle to the north and town of Harrison to the north and east. Greenburgh lies to the west while Scardale borders the south. Hudson River flows around 7 miles west of White Plains. White Plains the corporate and trading hub of Westchester County with numerous central and state government administration headquarters and courts. Apart from government offices, the city is crammed with industries like shopping, medical facilities, transportation. White Plains home to more than 1,000 retail establishments, including names like Bloomingdales, Target, Nordstorm, Neiman Marcus and Walmart. White Plains is blooming with exceptional restaurants, art and cultural organizations, boutiques and happening nightlife. White Plains is a prosperous uptown just north to New York city with a population of 57,866 according to the United States Census Bureau in 2013. Residents can enjoy the humid continental climate and the best amenities including easy access to numerous parks, recreational facilities, excellent medical facilities and...
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...The following is a final business report about my company, and my feelings on the business project this semester. The name of my business is Bass and Treble Music Company. I chose Bass and Treble for the name of my business because, in music, there is a bass clef and treble clef. These two clefs are symbols used to show if the notes are in the lower or higher spectrum of music. I thought it would be clever to use something musical in the name for a music company. I am the owner of Bass and Treble Music Company. I am in charge of, basically, everything. I have to make sure the business is running smoothly, and all of my employees are working efficiently to make sure the customers are fully satisfied. I am also the person that verifies everything to make sure it is appropriate and ready for the public. For example, I have to approve all social media posts before they are actually posted, so that Bass and Treble is properly represented and shown to the public. Although I am the owner, I have the most responsibility because I have to approve everything first. There may be employees that run certain area of the business, but I am the one who must look over everything to let it go to the public. Bass and Treble is not selling a specific product. It is a music company that has a plethora of musical options for people to choose from. Bass and Treble offers music lessons, a range of music to buy, instruments, supplies for various instruments, and even a separate lodge for performances...
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... 2. Choose and describe five different sections contained within a MSDS. In general, describe the contents found within those sections that you have chosen to write about. Section 1: General information. This section contains directory information about the manufacturer of the substance, including the manufacturer’s name and address, telephone number of an emergency contact person, a nonemergency telephone number for information, and a dated signature of the person who developed or revised the MSDS. Section 2: Hazardous ingredients. This section should contain the common name, chemical name, and Chemical Abstracts Service (CAS) number for the substance. Chemical names are the scientific designations given in accordance with the nomenclature system of the International Union of Pure and Applied Chemistry. The CAS number is the unique number for giving chemical that is assigned...
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...Centre for Foundation Studies, UTAR Chapter Scopes FHSC1124 Organic Chemistry Alkanes • IUPAC Nomenclature / naming of aliphatic alkanes and cycloalkanes • Physical properties • Combustion reactions • Free-radical substitution reactions & mechanism • Crude oil and “cracking” Chapter 2 Introduction to Alkanes IUPAC Nomenclature • Simplest member of hydrocarbon family • General formula of alkanes = CnH2n+2 • Alkanes = Paraffins (hydrocarbons with general formula CnH2n+2) • Aliphatic compounds: open chain / acyclic compounds • The names of alkanes end with suffix -ane. • Saturated hydrocarbon: only have C−C & C−H single bonds & contain the maximum possible number of H per C. 3 IUPAC Rules 1. Select the longest continuous C chain as parent chain (use root word for the no. of C) 2. Name each of the branch/substituents as an alkyl / aryl group 3. Number the C chain beginning from the end nearest to the branch ⇒ branch/substituents appear at the lowest no. possible FHSC1124 ORGANIC CHEMISTRY • IUPAC International Union of Pure & Applied Chemistry • The IUPAC nomenclature system is a set of logical rules devised and used by organic chemists to name the organic compounds. Prefix − Parent − Suffix What are the How many What family? substituents? carbons? IUPAC Rules 4. Name each substituent according to its chemical identity & the no. of the C atom to which it is attached ⇒ For identical substituent, use the prefix ...
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...U2 mod 1chem. Halogenoalkanes page1 of 4 Introduction Halogenoalkanes or alkyl halides are derivatives of alkanes. General formula = CnH2n+1X or simply R—X where R represents an alkyl group They can be classified as primary, secondary or tertiary alkyl halides. Primary alkyl halides have either 1 or no alkyl groups attached to the central carbon atom. Secondary alkyl halides have 2 alkyl groups (circled) attached to the central carbon atom. Tertiary alkyl halides have 3 alkyl groups (circled) attached to the central carbon atom Aryl halides are compounds in which the halogen atom is attached directly to the aromatic ring. U2 mod 1chem. Halogenoalkanes page2 of 4 Reactions of alkyl halides The point of attack would be the electron deficient carbon atom (due to the difference in electronegativity in the C-X bond) attached to the halogen atom , thus the attacking species would be a nucleophile. All reactions need the present of heat i.e. reflux 1. Alcohol formation (R represents any hydrocarbon chain) R—X + OH- R—OH + XPrimary and secondary alkyl halides undergo alkaline hydrolysis to the alcohol while tertiary alkyl halides can be hydrolysed by water. Aryl halides do not undergo hydrolysis except under VERY SEVERE conditions. Industrially chlorobenzene is reacted with NaOH(aq) at 360 °C at a high pressure then adding dilute HCl. 2. Amine formation R—X + NH3(alc) heat in a sealed tube R—NH2 + HX Note (alc) means an alcoholic solution as opposed to an aqueous...
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...Chapter 7-9 Homework Key, CH341 |1. |Give the major organic product of the reaction of 1-ethylcyclopentene with each of the following reagents. Show |[pic] | | |stereochemistry when appropriate. | | |a. D2 with a Pt catalyst. D’s add |b. H-Br |c. H2O with H2SO4 as a catalyst. |d. Cl2: the Cl’s add trans to the | |cis | | |C=C. | |[pic] |[pic] |[pic] |[pic] | 2a. Draw an arrow-pushing mechanism for the following reaction. [pic] [pic] The methanol attacks from the back side of the cyclic bromonium ion, since the Br is blocking the front side from attack. b. This is two additions of H-Cl to a pi-bond, one after the other. [pic] [pic] [pic] 4. Give IUPAC names for the following structures |a. |[pic] |b. |[pic] | | | | |4-butyl-5-propylcycloheptene | | |7-propylundec-2-yne ...
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...unsaturated hydrocarbon with the general formula CnH2n, n≥2. (b) Draw the structures and name the compunds according to the IUPAC nomenclature for: i) straight chain and branched alkenes (parent chain ≤ C10) ii) cyclic alkenes (C3-C6) iii) simple dienes (C4-C6) 2 Learning Outcomes At the end of this topic, students should be able to: c) Show the preparation of alkenes through: i) dehydration of alcohols ii) dehydrohalogenation of haloalkanes d) Write the mechanism for c(i) e) State Saytzeff’s Rule. f) Deduce the major product of elimination reaction. 3 Alkenes - General formula CnH2n , n 2. - Functional group C=C double bond - Unsaturated hydrocarbon - C═C 1 σ bond and 1 π bond A B C=C A B Restricted rotation of carbon-carbon double bond causes cis-trans isomerism 4 Alkenes Cycloalkenes - General formula CnH2n-2 - Isomeric to alkynes CnH2n-2 Example : C4H6 CH2 CH CH2 Functional group isomerism CH CH3C – CCH3 5 Alkenes Common Names Of Alkenes Many older names for alkenes are still in use … example: CH2 CH3 CH2 ethene ethylene CH2 CH CH3 CH2 2–methylpropene isobutylene CH3 CH3 propene propylene C CH3 C CH CH2 2–methylbut-1,3-diene 6 isoprene Alkenes IUPAC Nomenclature 1. Determine the parent name by selecting the longest chain that contains the double bond and change the ending ‘-ane’ in alkane to ...
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...These recommendations document the von Baeyer system for naming polycyclic ring systems described in Rules A-31, A-32 and B-14 of the Nomenclature of Organic Chemistry, Sections A, B, C, D, E, F and H, 1979 and R-2.4.2 of A Guide to IUPAC Nomenclature of Organic Compounds, 1993 and extend the system to cover more complex cases. It provides guidance on the naming of ring systems which previously the rules did not cover. The method is to identify the main ring and main bridge which provide the basic bicyclic system and to number these atoms. Then all further bridges, whether or not they include additional atoms, are identified by indicating not only the number of atoms but also the two atoms to which the bridge is attached. The final name also indicates the number of rings and the total number of skeletal atoms in the ring system. Heteroatoms, unsaturation and substituents are indicated in the usual way. Preamble This system of naming polycyclic compounds was first developed for bicyclic compounds by von Baeyer (ref 1) and was extended to tricyclic systems by Buchner and Weigand (ref 2). Von Baeyer nomenclature was adopted by Patterson (ref 3) in his work for IUPAC on ring nomenclature which was used in the Ring Index (ref 4) and by the Chemical Abstracts Service Index Guide, Appendix IV, ¶ 155, 161, 184 (ref 5). IUPAC extended von Baeyer nomenclature in the current rules, see rules A-31, A-32 (hydrocarbons), B-14 (heterocyclic compounds) plus examples in B-6.1,...
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...SITUATION 1: The supply sergeant has tasked you to review the MTOE: (Use the Military Police Company MTOE provided in the student handout) Requirement 1: What is the paragraph number of the Company Headquarters? |102 | Requirement 2: What is the ASI for the Wheeled Vehicle Mechanic of the Company Headquarters? |H8 | Requirement 3: What is the total number of personnel authorized for the 12 MP Squads? |72 | Requirement 4: Which section(s) of the MTOE can the mission, assignment, and capabilities located? |Section I | SITUATION 2: Utilizing CTA 50-900, answer the following questions? Requirement 5: Define the acronym AA-M? | | Requirement 6: The clothing allowance zones can be located in what table? | ...
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...|Observer: |Activité 1 - Chapitre 4 : quelques familles organiques | |ondes et matière | | Activité réalisée à l’aide de l’ouvrage Entrainement TS (Hachette) I) Alcanes, Alcools, Aldéhydes, cétones et acides carboxyliques : Ces différentes familles de composés organiques ont été étudiées en classe de Première S. Activité : A l’aide des rappels du rabat V de votre livre et de vos connaissances de 1èreS, répondre aux questions qui suivent : Alcanes : 1. Nommer les alcanes suivants : 2. Ecrire les formules développées des alcanes suivants : a. 2,2 – diméthylpropane b. 3-éthylpentane c. 2,4 – diméthylpentane d. méthylbutane 3. Reconnaitre les couples d’isomères parmi les alcanes du 2. Alcools : 1. Nommer les alcools suivants : 2. Ecrire les formules développées des alcools suivants et déterminer leur classe : a. éthanol b. butan-2-ol ...
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...Biology From Wikipedia, the free encyclopedia For other uses, see Biology (disambiguation). Biology deals with the study of the many varieties of living organisms. Clockwise from top left: Salmonella typhimurium, Phascolarctos cinereus, Athyrium filix-femina, Amanita muscaria, Agalychnis callidryas, and Brachypelma smithi Biology is a natural science concerned with the study of life and living organisms, including their structure, function, growth, origin, evolution, distribution, and taxonomy.[1] Biology is a vast subject containing many subdivisions, topics, and disciplines. Among the most important topics are five unifying principles that can be said to be the fundamental axioms of modern biology:[2] 1. Cells are the basic unit of life 2. New species and inherited traits are the product of evolution 3. Genes are the basic unit of heredity 4. An organism regulates its internal environment to maintain a stable and constant condition 5. Living organisms consume and transform energy. Subdisciplines of biology are recognized on the basis of the scale at which organisms are studied and the methods used to study them: biochemistry examines the rudimentary chemistry of life; molecular biology studies the complex interactions of systems of biological molecules; cellular biology examines the basic building block of all life, the cell; physiology examines the physical and chemical functions of the tissues, organs, and organ systems of an organism; and ecology...
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...CHEMISTRY CHEMISTRY (CLASSES XI–XII) Rationale Higher Secondary Stage is the most crucial stage of school education because at this stage specialised discipline based, content oriented courses are introduced. Students reach this stage after 10 years of general education and opt for Chemistry with a purpose of mostly for pursuing their career in basic sciences or professional courses like medicines, engineering, technology and studying courses in applied areas of science and technology at tertiary level. Therefore, at this stage, there is a need to provide learners with sufficient conceptual background of Chemistry, which will make them competent to meet the challenges of academic and professional courses after the higher secondary stage. National Curriculum Framework for School Education – 2005 recommends a disciplinary approach with appropriate rigour and depth with the care that syllabus is not heavy and at the same time it is comparable to the international level. It emphasizes a coherent focus on important ideas within the discipline that are properly sequenced to optimize learning. It recommends that theoretical component of Higher Secondary Science should emphasize on problem solving methods and the awareness of Syllabus for Secondary and Higher Secondary Levels 22 historical development of key concepts of science be judiciously integrated into content. The present exercise of syllabus development in Chemistry at Higher Secondary Stage is based on this framework...
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...Notes Enzymes: What must occur for a reaction to proceed? Collision Theory: 1. Reactants must collide 2. Reactants must have enough energy 3. Reactants must hit with proper orientation Here is morbid example of collision theory. How do a train and school bus react to give a train with engine damage and a school bus in two pieces? [pic] If you look back to the three conditions required for a reaction to occur, we can relate them to his terrible accident. In the collision theory, condition number one requires that the train must collide with the bus. Condition number two requires that the train and bus collide with enough energy for the reaction to occur, meaning the train must hit bus with enough energy, not merely tap the bus. The third condition requires that the train and bus hit with the proper orientation. If the bus hit the side of the train, it will not slice the train in have. The train must t-bone the bus. Hopefully this visual will help you to remember the condition required for a reaction to occur. Energy Diagrams: Energy diagrams are also called reaction progress diagrams as they depict the energy of the chemicals involved in the reaction through out the course of the reaction. The following is an example of an exothermic reaction: [pic] A catalyst will lower the activation energy of a reaction. The result is shown in the following reaction progress diagram for an exothermic reaction. [pic] The green line in the transition state is...
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...The Rh factor (ie, Rhesus factor) is a red blood cell surface antigen that was named after the monkeys in which it was first discovered. Rh incompatibility, also known as Rh disease, is a condition that occurs when a woman with Rh-negative blood type is exposed to Rh-positive blood cells, leading to the development of Rh antibodies. Rh incompatibility can occur by 2 main mechanisms. The most common type occurs when an Rh-negative pregnant mother is exposed to Rh-positive fetal red blood cells secondary to fetomaternal hemorrhage during the course of pregnancy from spontaneous or induced abortion, trauma,[1] invasive obstetric procedures, or normal delivery. Rh incompatibility can also occur when an Rh-negative female receives an Rh-positive blood transfusion. In part, this is the reason that blood banks prefer using blood type "O negative" or "type O, Rh negative," as the universal donor type in emergency situations when there is no time to type and crossmatch blood. The most common cause of Rh incompatibility is exposure from an Rh-negative mother by Rh-positive fetal blood during pregnancy or delivery. As a consequence, blood from the fetal circulation may leak into the maternal circulation, and, after a significant exposure, sensitization occurs leading to maternal antibody production against the foreign Rh antigen. Once produced, maternal Rh immunoglobulin G (IgG) antibodies may cross freely from the placenta to the fetal circulation, where they form antigen-antibody complexes...
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...CORE SYLLABUS for National Eligibility-Cum-Entrance Test (NEET) for Admission to MBBS/BDS Courses The Medical Council of India (MCI) recommended the following syllabus for National Eligibility-cum-Entrance Test for admission to MBBS/BDS courses across the country (NEET-UG) after review of various State syllabi as well as those prepared by CBSE, NCERT and COBSE. This is to establish a uniformity across the country keeping in view the relevance of different areas in Medical Education. PHYSICS S.No. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. CLASS XI Physical world and measurement Kinematics Laws of Motion Work, Energy and Power Motion of System of Particles and Rigid Body Gravitation Properties of Bulk Matter Thermodynamics Behaviour of Perfect Gas and Kinetic Theory Oscillations and Waves CLASS XII Electrostatics Current Electricity Magnetic Effects of Current and Magnetism Electromagnetic Induction and Alternating Currents Electromagnetic Waves Optics Dual Nature of Matter and Radiation Atoms and Nuclei Electronic Devices CHEMISTRY S.No. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. CLASS XI Some Basic Concepts of Chemistry Structure of Atom Classification of Elements and Periodicity in Properties Chemical Bonding and Molecular Structure States of Matter: Gases and Liquids Thermodynamics Equilibrium Redox Reactions Hydrogen s-Block Element (Alkali and Alkaline earth metals) Some p-Block Elements Organic Chemistry- Some Basic Principles and Techniques Hydrocarbons...
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