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The effects of chlorine in drinking water
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chlorine (Cl) is a yellowish/greenish toxic gas with a choking smell that is often used in pools to help keep them clean. It is located in group seventeen, period three of the periodic table. Chlorine has seventeen as an atomic number meaning that it has seventeen protons, and seventeen electrons. The atomic mass rounded to the nearest whole number of chlorine is thirty-five. In order to determine the number of neutrons subtract the atomic number from the atomic mass (35-17) which is eighteen.
Chlorine begins to boil at negative twenty-nine degrees fahrenheit. It begins to freeze at negative one hundred forty-nine point seventy-six degrees fahrenheit. Chlorine is not flammable on its own but will emplode if exposed to other chemicals like turpentine and ammonia. Chlorine is slightly soluble in water depending on temperature. Chlorine has eighteen isotopes which are
Thirty one through forty four, Fifty
Fifty one. Isotopes are a different form of an element with the same number of protons but different numbers of neutrons.
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Carl also did experiments and learned that it stained litmus paper, and decolorized leaves and flowers. It was created by combining pyrolusite and hydrochloric acid in 1774. Although Carl discovered chlorine it wasn’t until later in 1810 that Humphry Davy proved that it was an element. The name was given by Humphry Davy.The name is derived from the Greek 'chloros', meaning greenish yellow. It is found in cleaning products and used to be in pesticides, rubber, and solvents. The reason why carl was not the one who figured out that is because he believed that the gas had oxygen in
Physicists started to realize that stable nuclei can be converted to unstable nuclei. Through such process, they discovered that heavy nuclei can undergo nuclear fission. While testing, they added a neutron to an isotope of Uranium 235. This resulted Uranium 235 to become unstable and break down into Barium and Krypton, releasing two to three more neutrons. The breakdown of Uranium 235 is called “fission”.
For part one of the experiment, my team asked the question of which cell fraction of the measured pea seedlings will have a higher ratio of chloroplasts? My group tested for the activity of chloroplasts with three different pairs of cell fractions by two conditions of light and dark in three readings. The first two cell fractions, pellet one and two (P1, P2), are the hard sediments found at the bottom of a tube after it has been centrifuged (which are specimen, like the mitochondria and chloroplast, that are isolated from the rest) (Leicht and McAllister, 2016). The last cell fraction used was the supernatant two (S2), which is just the free liquid surrounding the pellet after the centrifuging of P2 (Leicht and McAllister, 2016). To test for this, DCIP (a chloroplast isolation buffer) was used to
Hydrochloric acid is the clear colourless solutions of hydrogen chloride (HCl) in water, hydrochloric acid is also a highly corrosive substance and a strong mineral acid meaning they are formed from inorganic compounds, hydrochloric acid is a monoprotic acid meaning that it can only ionize one H+ ion. As a result hydrochloric acid can be used in a wide range of industrial practices such as removing rust from steel, ore processing, the production of corn syrup and making of PVC plastics. Hydrochloric acid is made using a very straight forward method which involves dissolving hydrogen chloride (HCl) in water, releasing the H+ cation and Cl- anion. In this aqueous form the H+ ion joins water to form a hydronium ion (H3O+)
"Federation of American Scientists :: Types of Chemical Weapons." Federation of American Scientists. N.p., n.d. Web. 17 May 2010.
23 April 1915 British troops were attacked with chlorine gas, and Sir John French, the British Commander-in-Chief wanted retaliation with the same effects that was dealt to his troops, and he also wanted the means to defend his troop against these attacks, which lead to the establishment of Porton Down. 10 July 1915 the British used chlorine gas against the Germans, after the attacks the British realized that the chlorine delivery method was inconsistent, the gas had a small radius of cover, the chlorine had a smell so it could be detected early without inhaling a large amount, and the gas also didn’t stay on the ground very long, so further research went into the development of chemical weapons. The first experiment was done with hydrogen sulphide; the British tested the gas by placing rats in cages in trenches, and had mine workers with self contained breathing apparatus collect clouds of the gas in jars as the gas passed over them. The testing of hydrogen sulphide were successful, it showed that the gas had lethal concentration at 300 yards from the point of release. Hydrogen sulphide was short lived, it was discovered that it’s was too dangerously flammable, and it corrodes the cylinders that it’s stored in, it was also to light to stay near the ground after release, and possessed a distinctive smell at very low concentration which is an early warning to the enemy. At 05:50 AM 2...
Hydrochloric acid is polar substance and has a linear shape with an electronegativity difference of 0.9; it has weak dipole-dipole forces/bonds between its molecules (intermolecular forces) and polar covalent forces/bonds between the chloride and hydrogen ions (Intramolecular forces). (5) HCl has a molar mass of 36.4609 g.mol-1. HCl is fully miscible in water as it forms hydrogen bonds with the water. Hydrochloric acid has a melting point of 247K and a boiling point of 321K if in a 38% solution. 17
The chlorine acts as an electron withdrawing substituent. This would stabilize the partial negative on the α carbon in transition state
Feces, viruses, staph, Salmonella and hand-foot-mouth disease. These are just a few of the things that can be on our hands from normal daily living. With compromised immune systems, open wounds and other issues, these are very harmful. That is why it is so important to keep proper hand hygiene in mind at all times. Hospital infections affect almost two million people in the United States every year, 100,000 of whom die. Up to 70 percent of infections could be prevented if the health care workers follow recommended protocol (Michigan Health Lab, May 26, 2016). Nobody wants to know that when your food has
Isotopes refer to 1 of 2 or more atoms with the same atomic number but different numbers of neutrons. The atom copper has two stable isotopes. They are 63Cu and 65Cu. 63Cu has an isotope atomic mass (in atom) of 62.9295989 and a natural abundance (in atom %) of 69.17. 65Cu has an isotope atomic mass (in atom) of 64.9277929 and a natural abundance (in atom %) of 30.83.
Slime is a special play material made up of tangled polymer. It is mostly made by mixing polyvinyl with the chemical compound known as borate ions, you can describe it as a liquid and mix it in a sizable container for mixing. In a more difficult explanation, slime is more commonly known amongst scientists as a Non-Newtonian fluid. These are thick liquids that have a numerous selection of viscosity.
Isotopes: Atoms of the same element (same atomic number) but with differing numbers of neutrons, different mass numbers.
Dofasco uses hydrochloric acid to remove scale, oxides and other impurities that form on the surface of hot-rolled steel coils in a finishing process-a pickling line. Hot-rolled iron moves through baths of hydrochloric acid to remove impurities that form on the surface of the steel during the manufacturing process. The acid is used as a substance to create a clean-surfaced product. Hydrochloric acid is a clear, colorless, solution with a strong odour made of hydrogen chloride ions and water. This acid is highly corrosive and is used for many industrial purposes such as the pickling process. It is highly reactive, which is why it works efficiently to remove impurities off the surface of steel when it reacts with the steel. During the hot rolling of the
1. The labels have fallen off of three bottles thought to contain hydrochloric acid, or sodium chloride solution, or sodium hydroxide solution. Describe a simple experiment which would allow you to determine which bottle contains which solution.
The chemical has colorless liquid, with characteristic odor. A harmful contamination of the air will be reached on evaporation of this substance at 20'C.
The process of changing of unstable nucleus into another element is called transmutation.The above phenomenon is called Radioactivity.