Identification and Production of Materials ================================ Ethene‚ Polymers and Ethanol ================================ Catalytic Cracking Oil refineries need to balance their outputs of various products (petrol‚ diesel‚ fuel oil‚ etc.) to match the demands of the marketplace. Catalytic cracking is the process in which high molecular weight (high boiling point) fractions from crude oil are broken into lower molecular weight (lower boiling point) substances in order to increase
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alkenes. (a) trans-1‚2-dichloropropane (b) cis-2-pentene (c) cis-3-hexene (d) trans-2-hexene Write the structural formula for: (a) cis-1‚2-dichloropropene (b) trans-2-pentene (c) trans-3-hexene (d) cis-2-hexene 30) In each case‚ tell whether cis and trans exist. If they do‚ write the structural formulas for two isomers and label each cis or trans‚ (a) Br2CH2 : No (b) CH3CH2CH=CHCH2CH3: Yes (c) CH3CH=CHCH3: Yes (d) CH2=CHCH2CH3:No 31) Which of these molecules can
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I. Issues that Azucena Inalis must take into consideration. There seems to be two major issues that PCC must tackle in its ‘corned beef venture’; 1) where should PCC get its raw materials? (beef) and 2) Where does PCC source its debt? When it comes to the outsourcing of beef‚ PCC is considering Argentina‚ Australia‚ and/ or India. There are a number of concerns that must be addressed when it comes to importing raw materials from any one of these countries: 1) Political and Legal Considerations
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This memo is aimed to evaluate the overall television industry today and to provide a brief overview of one of the industry leading players - Comcast Corporation’s current business situation‚ specifically‚ to examine its internal strengths and weaknesses as well as opportunities and threats in the external environment. More importantly‚ the key challenges that the company is currently facing and the potential solutions to theses problem will be discussed. The current U.S. broadcast and cable television
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Background and Problem Definition: Drypers is manufacturer and marketer of premium and value priced disposable baby diapers. Drypers is contemplating invest an additional 10 million in advertising in order to increase their brand awareness‚ create value and increase market share. This 10 million is 33% increase in advertising and promotion budget of Drypers. Market and Industry Analysis: Diapers market is worth $ 4.525 Billion. The user of these diapers is infants and children below age
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DESIGN OF THE QUESTION PAPER CHEMISTRY CLASS - XII Time : Three Hours Max. Marks : 70 The weightage of the distribution of marks over different dimensions of the question paper shall be as follows: A. Weightage to content/subject units Unit Title Marks 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. Solid state Solutions Electrochemistry Chemical Kinetics Surface Chemistry General principles and process of Isolation of elements p-Block Elements
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1. Hydrogen Name: Hydrogen Atomic number: 1 Atomic Weight: 1.00794 grams/mole Standard state: gas at 198 K Hydrogen is the lightest Hydrogen is the lightest element. It is by far the most abundant element in the universe and makes up above 90% of Universe by weight. Hydrogen as water (H2O) is absolutely essential to life and it is present in all organic compounds. Hydrogen is lightest gas. Hydrogen gas was used in lighter-than-air balloons for transport but is far too dangerous because
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question and answer book is provided with this data book. Students are NOT permitted to bring mobile phones and/or any other unauthorised electronic devices into the examination room. © VICTORIAN CURRICULUM AND ASSESSMENT AUTHORITY 2012 2012 CHEM DATA BOOK 2 Table of contents page 1. Periodic table of the elements 3 2. The electrochemical series 4 3. Physical constants 5 4. SI prefixes‚ their symbols and values 5 5. 1H 6.
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Enthalpy changes can be calculated using average bond enthalpy data. i) The enthalpy change to convert methane into gaseous atoms is shown below. [pic] Calculate the average bond enthalpy of a C—H bond in methane. [1] ii) Use the data in the table below and your answer to (a)(i) to calculate the enthalpy change for [pic] [3] [pic] b) The standard enthalpy of formation of 1‚2-dibromoethane‚ CH2BrCH2Br‚ is – 37.8 kJmol-1. Suggest the main reason for
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Objectives: 1. To make careful measurements of the amounts of each reactant. 2. To calculate the number of moles of each reactant. 3. To predict which reactant is in excess. 4. To use drawings to relate microscopic events‚ to write a chemical equation that represent those microscopic events. 5. To learn how to measure the volume of a liquid using a buret. Prelab Questions: 1. Calculate the number of moles in 2.65g of zinc. 2. Calculate the number of moles of hydrochloric acid
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