Bromine

In the last 60 years, Uranium mining has become the basis of one of the worlds most popular sources of energy. While Uranium is almost always used for nuclear energy, it is also used in medical isotopes. To obtain Uranium for nuclear power, it is generally mined in large open pit and underground mines. Like most other mines, mining Uranium destroys the ecosystem and landscape, produces lots of noise pollution, demolishes habitats and are very dangerous. More specifically, Uranium mines have an…

ozone-depleting property.1 This is further supported by the article Ozone Depletion by Hydrofluorocarbons which states, “These [CFCs] compounds contain chlorine and /or bromine and when broken down in the stratosphere, the Cl and Br atoms deplete ozone via catalytic loss cycles… In contrast, since HFCs do not contain chlorine or bromine, their estimated direct chemical potential to deplete ozone via catalytic loss cycles that involve fluorine has been shown to be extremely small.”2…

Chromium reacts directly with fluorine to create chromium fluoride (CrF6). "Chromium metal reacts with the halogens fluorine, F2, chlorine, Cl2, bromine, Br2, and iodine, I2, to form the corresponding trihalides chromium(III) fluoride, CrF3, chromium(III) chloride, CrCl3, chromium(III) bromide, CrBr3, or chromium(III) iodide, CrI3 (webelements).” Chromium does not react with air or water. Chromium…

dibromomethyl groups attached on aromatic rings of fluoranthene molecules in the presence of dioxane, alkaline conditions and reflux. High yields of coronnulene (around 80%) are observed Figure 2. From Dr. Sygula’s presentation, it was shown that bromine groups on the buckybowl can be eliminated by a reaction of zinc/potassium iodide in…

Most Americans do not realize this, but water plays a significant part towards our survival. We use it for almost any basic need; drinking, cleaning, entertainment, and so on. Water is always there when we need it. However, in California, water is diminishing. Residents are finding out that they cannot take a shower, brush their teeth, or even drink water. “You don’t think of water as a privilege until you don’t have it anymore,” says Yolanda Serrato. Lakes and rivers are disappearing and…

Chlorine is the second to lightest member of the halogen elements. It is in Group 17 (Group VIIA) and period 3 of the periodic table. The element symbol for Chlorine is Cl. Chlorine is a greenish yellow gas that is corrosive, toxic and can be irritating to the eyes and respiratory system. Chlorine is a nonmetal that has the atomic mass of 35.45 amu. It has a melting point of -100.98 degrees Celsius and a boing point of -34.6 degrees Celsius. However, at room temperature it is a gas. Chlorine…

Title: The Dead Sea Human Imprint Description: The Dead Sea human imprint features phases of the body of water that involves the presence of various human behavior. Keyword: Manmade canals Dead Sea Human Imprint The named Dead Sea traces its roots to the Hellenistic Age (323 to 30 BCE). The Dead Sea figures in biblical accounts that can be traced to the time of Abraham and the eradication of Sodom and Gomorrah. The Hebrew Bible states that the city of Sin is one of the two cities along the…

The Earth’s climate has always been variable, this has been shown through the Earth going through severe stages of dramatic climate. The greatest example of this are the 5 major Ice Ages that have occurred throughout the Earth’s history. Many scientists believe that human influences have had a major impact the temperature of the Earth since the start of the Industrial Era. The main influence is the enhanced greenhouse effect, this has occurred from fossil fuels being released into the atmosphere…

2013). Currently greenhouse gasses: carbon dioxide(CO2), methane(CH4) and nitrous oxide(N20) have been released in large amounts into the atmosphere, warming planet earth (NASA, 2016). These gases deplete the ozone layer by releasing chlorine and bromine atoms into the stratosphere, which destroy ozone molecules causing holes in the Ozone layer (NOAA, 2016). These gasses are largely caused from burning fossil fuels…

Bronchitis is an inflammation of the bronchial tubes, or bronchi, that bring air into the lungs. Inflammation is a chemical reaction in the body that produces redness, swelling, and pain. When the cells lining the bronchi are irritated, the tiny hairs (cilia) that normally trap and eliminate things from the outside stop working. Formation of material associated with irritation swelling also increases; causing the passages to become clogged. The same viruses that cause colds, often cause acute…