1. (a) The diagram below represents the industrial fractional distillation of crude oil. (i) Identify fraction A. (ii) What property of the fractions allows them to be separated in the column? (2) (b) A gas oil fraction from the distillation of crude oil contains hydrocarbons in the C15 to C19 range. These hydrocarbons can be cracked by strong heating. (i) Write the molecular formula for the alkane with 19 carbon atoms. (ii) Name the type of reaction involved in cracking. (iii) Write
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The Inorganic Chemistry of Carbon Inorganic Carbon For more than 200 years‚ chemists have divided compounds into two categories. Those that were isolated from plants or animals were called organic‚ while those extracted from ores and minerals were inorganic. Organic chemistry is often defined as the chemistry of carbon. But this definition would include calcium carbonate (CaCO3) and graphite‚ which more closely resemble inorganic compounds. We will therefore define organic chemistry as the study
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The history of the hot tub can be traced back to the Egyptians. It has been used through the centuries for those who wish to enjoy the comfort of hot water caressing a tired body. Everyone who has ever had the experience enjoys the luxury of a hot tub. Being able to lay back and let the hot water jet over one’s tired body cannot be described. It allows all the muscles to relax and the cares of the day fade away. For years‚ there were very heavy and awkward hot tubs. Today‚ there is a new item on
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Assignment 201 Principles of communication in adult social care settings Assignment composition Assignment overview In this assignment‚ you will complete tasks to demonstrate your understanding of the importance of communication in adult social care settings‚ and ways to overcome barriers to meet individual needs and preferences in communication. You will also address the issue of confidentiality. Tasks There are two tasks to this assignment. A Short answer questions B Poster This is a summary
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the two flavors of M&Ms and a slogan of “Packs of Fun for Everyone”. The advertisement can be labeled as pop art with many bright colors with cartoonish fonts. The M&M advertisement’s audience is aimed towards children to help persuade them to purchase the candy. Each of the individual M&M candies has a prop or personality which portrays that there is no specific person who can eat the candy. The main eye-catcher of the advertisement is the slogan of “Packs of Fun for Everyone” which is written is
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Fireworks and What Makes Them Go Sparks! Colors! Things that go BOOM! Chemistry doesn’t get much better than this. Ever notice how minutes drag on for hours when you’re waiting for a fireworks show to begin? Everyone’s thinking the same thing: The sky is dark enough the hot dogs are all eaten…come on when are they going to start? Then the first rockets streak into the sky…Ooh! Aah! Yes‚ it was worth the wait. The birthplace of fireworks is generally recognized as China.
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The Chemistry of Lipids Experiment #8 Objective To observe the solubility of lipids in polar and nonpolar solvents and to compare saturated and unsaturated fats in their chemical reaction with bromine. The percent fat in a food will be determined by extraction of the fat and weighing it. Introduction Lipids‚ by definition‚ are natural substances that do not mix with water but dissolve in organic solvents. There are several classes of lipids‚ including: fatty acids‚ waxes‚ triacylglycerols
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DBA (HM) IT Individual Assignment A Restaurant management system By Sun Kai Beryl Lecturer: Sunni Date: May 8‚ 2011 Introduction Restaurants are a traditional industry which has a long history; cook’s high skill and innovation are all the basis of hospitality industry. Providing guests with an elegant dining environment‚ warm service and fast rhythm production‚ are all fashionable requirements. Use modern information technology to the whole process of organizing
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distribution or reproduction in any format is prohibited without the permission of the copyright holder. ABSTRACT In this work an investigation into the effect of alloying additions (Mn‚ Cu‚ Sb and Zr) on microstructure and corrosion of Zn alloys and hot dip galvanised coatings was undertaken. The first part of this thesis focuses on the effect of alloying additions on the corrosion of Zn alloys. The result shows that Mn is the most beneficial addition‚ which can significantly improve the resistance
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12U Equilibrium Unit Test Multiple Choice K/U Identify the letter of the choice that best completes the statement or answers the question. ____ 1. When solid lead(II) phosphate is in equilibrium with its ions‚ the ratio of lead(II) ions to phosphate ions is which of the following? a. 1:1 d. 2:3 b. 1:2 e. 3:2 c. 2:1 ____ 2. In a saturated solution of silver phosphate‚ the concentration of silver ion is 4.5 10-4 mol/L. The Ksp of silver phosphate would be which of the following
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