Bromine

1.2. How Far? Entropy What is entropy? The interaction of energy and matter governs our lives. We take for granted our ability to use chemicals in batteries to produce sound from MP3 Player. We get into a car and use petrol to travel in hours distance that would have taken our ancestors days. Energy and matter interact on other scales too –from the remnants of the explosion of star hundreds of light years in diameter, to the nucleus of an atom 10-9 mm in diameter. The way in which energy and…

Coliform cult tests were performed, testing for E. coli in the water. Also, water test strips were used to test for total alkalinity, free chlorine, pH, total hardness (amount of calcium carbonate), total chlorine, cyanuric acid, nitrate, nitrite, and bromine. The results came back to be negative for the presence of E. coli in bottled water and school water fountain samples. Also, the 9-way water test strip results for the school fountains were normal for all tests except for pH and chlorine…

Imagine what it would be like to live in an overpopulated area. Now imagine what an overpopulated world would be like to live in. In today’s world the population is constantly increasing and will continue to for years. The continuous growth of Earth’s population will eventually lead to a population that is incredibly dense. Over population is when the community becomes so dense that it starts to deteriorate the community and its standard of living. This is an issue that needs to be taken very…

title>INTRODUCTION Optical constants (complex refractive index n, complex dielectric function ϵ, and reflection and absorption coefficients R and α) of materials are of great importance for optical metrology in the semiconductor industry.1,2 A high-performance complementary-metal-oxide-semiconductor process flow with 11 layers of metal requires about 75 photolayers and may contain up to 100 thickness measurements, most of them performed using spectroscopic ellipsometry.3 This technique has…

Introduction The goal of this experiment was to determine atomic weight of Kandimonium and the relative number of M&M’s in Kandimonium. Kandimonim is composed of three isotopes: Skittles, M&M’s, and Sweet Tarts, and the ratio of Sweet Tarts to Skittles is 27:18. The relative number of M&M’s and the atomic mass were determined by weighing each of the different Isotopes and calculating their average masses for further calculations. Calculations The following calculations were used to…

Economic aspect of the Chemical Weapon In order to obtain chemical weapons, each country needed to face the problem of finding the source of raw material available in their country, the manufacture of raw material and, the transportation and training of human forces that would be used in time of war. The economic aspects of the chemical weapon are extensive, but we confine it to the study of the acquisition of raw materials. The Allies and the acquisition of raw materials In the middle of June…

Scientists that i truly admire I have two scientists who I admire Thomas Alva Edison and Humphry Davy. Thomas Alva Edison is one of the best investors; Thomas Alva Edison was conceived in 1847 out of a residential community in Ohio. His instructors thought he was a moderate student, so his mom showed him herself, moving his enthusiasm for science. In 1869, subsequent to moving to New York, he enhanced a machine called the 'ticker'. It was utilized for handing-off data about the share trading…

You'll Want a proper and Enjoyable Swimming Time A pool inside your garden or backyard is definitely an added beautiful sight to your house. But to have the ability to surely enjoy clean and fresh water, pool proprietors exert extra effort and cash for his or her maintenance. They just do not mind the additional expenses that they'll face by getting a pool particularly in its maintenance as lengthy because they are guaranteed of clean and fresh water constantly. To help keep water neat and safe…

has characteristics that differ from many compounds causing it to react differently when mixed with certain compounds. Although benzene has three double bonds, it does not react like a normal alkene in terms of addition reactions. For example, when bromine reacts with a simple carbon-carbon double bond it forms dibromo. Benzene does not do this unless it is in the presence of a strong catalyst, making it no longer an addition reaction, but an electrophilic substitution (Structure of Benzene,…

Index 1. Introduction 2. About plastic 3. 7 Types of plastic 4. Plastic in the environment 5. Bioplastic and Biogradable plastics 6. Conclusion 7. Bibliography 1. From food containers to cars and from toys to technology, everything can be made out of plastic. Plastics are carbon based polymers (polymers mean something of many parts) mostly made from petroleum. There are approximately 100 million tons of plastic produced every year. Some people believed that we have entered the age…