Chapter 9 The World of Plastics and Polymers Overview • Plastics are all around us – Polymers‚ materials whose molecules consist of long chain of atoms • Natural • Synthetic • Use of material and impact on economy‚ lifestyle‚ and leisure – Word plastic to some carry connotation “cheap” or “tacky” – Synthetic polymers revolutionised modern life • eg plastics become important in automobile industry‚ some new plastics stronger than steel and resist corrosion‚ less dense than structural
Premium Polymer
http://www.kewpid.com 1. Fossil fuels provide both energy and raw materials such as ethylene‚ for the production of other substances 1) Construct word and balanced chemical equations of chemical reactions as they are encountered • Methane + oxygen carbon dioxide + water • CH4(g) + 2O2(g) CO2(g) + 2H2O(l) 2) Identify the industrial source of ethylene from the cracking of some of the fractions from refining of petroleum Generally‚ demand for petrol exceeds supply produced from fractional distillation
Premium Ethanol Oxygen Carbon dioxide
alkenes. This caused an electrophilic halogenation reaction. If the bromine reacted with the alkene the bromine would discolor from orange and turn clear. Experiment Part A) Solubility of Alkanes: 1 mL of nine solvents (water‚ methanol‚ n-butanol‚ ethylene‚ glycol‚ acetone‚ hexane‚ toluene‚ ethyl acetate‚ and dichloromethane.) was added to nine sample vials. Each vial then had 0.5 mL of the alkane decalin added to each one. The mixtures were stirred to determine if the materials dissolved. If the
Premium Solvent Solubility
DIFFERENT STORAGE TECHNIQUES FOR FRUITS AND VEGETABLE Food spoilage: Every change in food that causes it to lose its desired quality and eventually become inedible is called food spoilage or rotting. Factors affecting storage life The natural limits to the post-harvest life of all types of fresh produce are severely affected by other biological and environmental conditions: Temperature: An increase in temperature causes an increase in the rate of natural breakdown of all produce as food reserves
Premium Carbon dioxide Temperature Fruit
sulfur contains 60% by mass of oxygen. Determine the empirical formula of the compound. [2] 3. Ethylene glycol‚ the substance used in automobile antifreeze‚ is composed of 38.7 g carbon‚ 9.7 g hydrogen‚ and 51.6 g oxygen. a. What is the empirical formula of the compound? [2] b. If its molar mass is 62.1 g/mol‚ what is the molecular formula of ethylene glycol? [1] 4. The temp in kelvin of 4.0 L of hydrogen is increased by a factor of 3 and the pressure
Premium Oxygen Acid Hydrogen
1 CHAPTER 1 PROJECT BACKGROUND 1.0 PROJECT BACKGROUND The main objective is to design an economic Acrylonitrile chemical plant with safer ways of processes for a minimum production rate of 100‚ 000 metric tonnes/year. 1.1 INTRODUCTION Recently‚ production of acrylonitrile has been increasing every year in many countries. The rapid growth of the industry is mainly attributed to the availability of oil and gas as feedstock‚ a well-developed infrastructure‚ and a strong base
Premium Distillation Oxygen Ammonia
carbons and one double bond between two of those carbon atoms. Polypropylene is manufactured from propylene gas in the presence of a catalyst. They are widely used for pipes‚ containers and packaging. Nonetheless‚ Polyethylene is a polymer made of ethylene. Ethylene has two carbon atoms bonded to each other with a double bond. Polyethylene is the basic component in making bottles‚ bags and fibres. Both polypropylene and polyethylene are thermoplastics polymers. They are linear polymers at which the chains
Premium Oxygen Chemistry Carbon
Bonne Bell Liquid Lip Smacker - Strawberry The new lip gloss by Bonne Bell treats your lips with your favorite flavors in a clear‚ high-shine gloss! Smooth-on gloss moisturizes with Vitamin E and Aloe and leaves lips super shiny! The sensations felt with the strawberry lip smacker made by the Bonne Bell Company is a fun‚ yet fabulous feeling compared to no other. This lip gloss is a must have. It also adds a beautiful shine on your lips and it is very cheap! The prices may vary according to the
Premium Lip Pink Color
decomposition process for these hydrocarbons are complex. During this process‚ active hydrogen atoms and hydrocarbons fragments are formed. These fragments can combine with each other to form gasses such as Hydrogen (H2)‚ Methane (CH4)‚ Acetylene (C2H2)‚ Ethylene (C2H4)‚ Ethane (C2H6) and many more. The gasses listed are considered combustible. The rate at which each gas are produced depends on the temperature. Therefore‚ the concentration of the individual dissolved gasses found in transformer insulating
Premium Carbon dioxide Transformer Hydrocarbon
Polymerization reaCTIONS polymers are high-molecular-weight compounds‚ fashioned by the aggregation of many smaller molecules called monomers. Ex. plastics that have so changed society and the natural and synthetic fibers used in clothing are polymers. Classification of polymers Homopolymers - consist of repeated long chains or structures of the same monomer unit. Ex. PVC(polyvinyl chloride) Copolymers - polymers that consist of more than one molecule. Trimers - molecules consisting
Premium