Introduction Polymers are large macromolecules composed of many small repeating subunits (monomers) connected via covalent bonds. Both natural and synthetic polymers are created via polymerization of these small molecules (Chemistry 144 Writing Assignment information sheet). The chosen polymer‚ polytetrafluoroethylene (PTFE) in the form of Teflon®‚ is a synthetic fluoropolymer of tetrafluoroethylene (Wikipedia‚ 2015)‚ and is one of the most well-known brand names for PTFE based formulas‚ owned by
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We have four important macromolecules; carbohydrates‚ lipids‚ proteins‚ and nucleic acids. From these four‚ the macromolecule I chose for this assignment was carbohydrate. Carbohydrates branch off into three main categories; monosaccharides‚ disaccharides‚ and polysaccharides. I decided to focus on disaccharides‚ specifically sucrose. Sucrose is more commonly known as table sugar. It has a chemical formula of C12H22O11. It is physically described as a white‚ odorless (although when heated‚ it may
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one and two piece molds. The main disadvantage is that it takes long time to cure. Another major factor in choosing the appropriate materials is sustainability. One method of recycling silicone rubber is to depolymerise to recover the silicone monomers‚ and then you can recycle each material. This way all the materials can be recycled and the product becomes sustainable. http://www.toolingu.com/definition-200140-18223-casting.html http://www.harmonyrecycling.com/silicone_rubber_recycling.html
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Understanding the functions of the body systems associated with energy metabolism Energy is used for many of the bodily functions including the ability to ventilate‚ respire‚ move‚ grow and repair. The first law of thermo dynamics states that energy can be transformed from one state to another but cannot be lost. Energy comes in many forms‚ some of these are as follows:- Light Sound Kinetic Heat Chemical In accordance with the First Law an example of how energy can transform is when the sun creates
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alkane flow over catalyst(silica‚SiO2‚alumina‚ Al2O3-temperature: 500oC | * CombustionComplete- CO2 + H2OIncomplete- C+H2O‚ CO+H2O * Addition-halogenation‚ hydration‚ hydrogenation‚hydrohalogenation‚ oxidation * PolymerisationCombine monomers to form polymers. | | |
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which was used in the fractional distillation portion of the experiment to obtain cyclopentadiene. Thus‚ the purpose of the fractional distillation in this experiment was to prevent the side reaction from occurring by cracking this compound into its monomer cyclopentadiene.10 The desired product was procured as evidenced by the completion of the reaction into crystal product and the melting point of the product being in a wide range of the literature value. The reaction was decidedly inefficient as
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Investigatory Project In Biology Styrofoam cup and Acetone as Glue Submitted by: Genelive S. Galarido Submitted to: Teacher Jeannette Perez Introduction Styrofoam is the trademarked name of the plastic foam polystyrene. Polystyrene is not biodegradable and resists compression‚ making it a persistent part of landfill waste. When acetone and polystyrene are combined‚ the polystyrene dissolves. For the investigatory project‚ the student could explore the effectiveness of acetone
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carbohydrates is supplemented with fat. By making this switch‚ the body enters ketosis‚ a state that causes the body to rapidly burn fat and can increase energy in the brain. As we learned‚ carbohydrates‚ such as bread‚ rice‚ and cereal‚ all have a monomer of sugars‚ meaning that blood sugar can spike and will also leave people feeling hungry sooner. By staying away from these carbs‚ one can lower their risk of diseases such as diabetes. If one were to stick with ketogenic diets in the long run‚ their
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cytoplasm. • General Structure of DNA - The structure of DNA as a double helix made up of a sequence of complementary bases joined by weak bonds. The bases are attached to a sugar phosphate backbone - A DNA molecule is made up of subunits / monomers called DNA nucleotides. - There are 2 types of DNA nucleotides‚ purines and pyrimidines. - Purines are double ringed structure: Adenine and Guanine. - Pyrimidines are single ringed structures: Thymine‚ Cytosine and Uracil. - The DNA nucleotides
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1.Carbohydrates Consists of CnH2xOx • Include sugars • Classified into groups based on the number of carbon atoms per molecule. • Classes of Carbohydrates o Monosaccharides ▪ Simple sugars o Disaccharides ▪ Compound sugars o Polysaccharides ▪ Complex sugars a. Monosaccharides • Simple sugars • Contain about 3 to 6 carbon atoms per molecule o Trioses
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