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
Premium Recycling Melting point Polymer
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
Premium Digestion Metabolism Oxygen
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. | | |
Premium Density Oxygen Temperature
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
Premium Chemistry Oxygen Water
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
Premium Polystyrene Acetone
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
Free DNA
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
Premium Protein Glucose Nutrition
1. What is the function of lipids? Used for energy storage. It has twice has much as energy/gram than carbohydrates. 2. What do lipids make part of? They are part of the cell membrane. 3. What two hormones are lipids? Estrogen and testerone 4. What are two examples of lipids? Fats and oils. 5. At what stage of matter are they held at in room temperature? Fats are solid at room temperature‚ and oils are liquid at room temperature. 6. What are foods of each example? Fats: butter‚ tard (animal
Premium Cholesterol Fat Fatty acid
usually mineral spirits having a flash point at about 40 °C (104 °F)‚ the same as some popular brands of charcoal starter. http://en.wikipedia.org/wiki/Paint_thinner Polystyrene (PS) /ˌpɒliˈstaɪriːn/ is a synthetic aromatic polymer made from the monomer styrene‚ a liquid petrochemical. Polystyrene can be rigid or foamed. General purpose polystyrene is clear‚ hard and brittle. It is a very inexpensive resin per unit weight. It is a rather poor barrier to oxygen and water vapor and has a relatively
Premium Acetone Calcium carbonate Solubility
structure and organic compounds. Atomic Structure Subatomic Particle Charge Location in an Atom Proton Positive Nucleus Neutron Neutral Nucleus Electron Negative Outer-shell Organic Compounds Large Biological Molecule Atoms it Contains Monomer(s) Function(s) in Living Organisms Carbohydrates C‚ H‚ and O Monosaccharides Source of energy Lipid C‚H‚ and O Glycerol and fatty acids Cushion and insulate organs; builds cell membranes Protein C‚ H‚ O‚ N‚ and S Lactase Is an enzyme and hemoglobin
Premium