Ca 3. A few drops of bromine water are added to an unknown colourless hydrocarbon. No chemical change was observed after allowing the mixture to stand for 5 minutes under ordinary laboratory lighting. Which one of the following is the most appropriate conclusion? (A) (B) (C) (D) The hydrocarbon must be unsaturated. The hydrocarbon contains single bonds only. The hydrocarbon must contain a double bond. The hydrocarbon must contain a triple bond. 2 4. A student diluted a solution of a strong
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very soluble in water because they can form hydrogen bonds with water. Tertiary amines do not have a high solubility because they cannot form hydrogen bonds‚ instead they bond using the lone pair on nitrogen. Solubility lessens as the attached hydrocarbon chains get longer‚ noticeably so after six carbons. Amides are used in the plastic‚ rubber‚ paper‚ water and sewage industries‚ and are used in crayons‚ pencils‚ and inks. Properties of Amides: The lower molecular weight amides are slightly
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molecule referred to in the previous question‚ what is the dominant element attached to the carbon backbone? Hydrogen 4. The fatty acid chain of the lipids is often referred to as a hydrocarbon chain. Discuss with your group why the chain is given this name and write a one-sentence definition for a hydrocarbon. 5. Which molecule has a central carbon atom with four different components around it? 6. Which molecule has a sugar‚ nitrogenous base‚ and phosphate group? 7. Discuss with your
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PREPARATION OF DETERGENTS CONTENTS Introduction 1. Classification of synthetic detergents * Anionic Detergents * Neutral or non-ionic detergents * Cationic Detergents * Bile Salts - Intestinal Natural Detergents * Amphoteric Detergents * Amphoterics 2. Key Concepts 3. Raw Materials 4. The Manufacturing Process * Introduction * End Products * The Blender Process * The Agglomeration Process * The Slurry Method * Liquid Detergent * Quality
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1. What is the first priority of a petroleum engineer? (5 points) The first priority of a petroleum engineer is safety. 2. What are the 5 elements of a petroleum system labeled on the illustration above? Green indicates hydrocarbon fill and E refers to the anticlinal structure. (10 points) A. Top Seal Rock (impermeable shale) B. Reservoir Rock (Porous sandstone) C. Source Rock (Organic-Rich shale) D. Potential migration route (Non-sealing fault) E. Anticlinal Trap 3. Name
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Emission Control Techniques 1. INTRODUCTION The need to control the emissions from automobiles gave rise to the computerization of the automobile. Hydrocarbons‚ carbon monoxide and oxides of nitrogen are created during the combustion process and are emitted into the atmosphere from the tail pipe. There are also hydrocarbons emitted as a result of vaporization of gasoline and from the crankcase of the automobile. The clean air act of 1977 set limits as to the amount of each of these pollutants
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products were investigated. Appearance of the wax/oil showed that at temperatures 550-600°C‚ the main products were highly viscous and at 500°C products were low viscous liquids. The chemical composition of the wax/oil products were mainly aliphatic hydrocarbons of up to C26 carbon atoms. Introduction Pyrolysis is now considered an appropriate technology in dealing with waste problems‚ such as waste plastics. This process differs from the conventional destructive process as it allows the recovery
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An Exploration of How to Prevent the Effects and Causes of Air Pollution Air pollution has not always been an area of individual problem but has always been a big major of global problem. In fact‚ air pollution is not a new issue to us. When I was in high school‚ I was already interested in doing research about air pollution. I began my search of my issue with the following questions in mind. What causes pollution? What are its effects? What can we do to prevent it‚ and get rid of it? Can
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VIHS/ Department of Chemistry Chemistry Revision Unit II (Edexcel) (01) a) When lithium nitrate and sodium nitrate are heated separately‚ both decompose giving oxygen gas as one of the products. (i) Which of these two nitrates would decompose at the lower temperature? .........................................................………………………………………….................... (ii) Give the name of any other product formed when sodium nitrate is heated. .....................................................
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Specimen Paper Centre Number Surname Other Names Examiner’s Initials Candidate Signature Question Mark Candidate Number For Examiner’s Use General Certificate of Secondary Education Foundation Tier 1 2 3 4 5 6 7 Science A Unit Chemistry C1 Chemistry 1F Chemistry Unit Chemistry C1 For this paper you must have: • a ruler • the Data Sheet (enclosed). You may use a calculator. F 8 9 TOTAL Time allowed ! 60 minutes Instructions ! ! ! ! Use black ink or black ball-point
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