the bacteria is positive‚ then we chlorinate the well. After we make sure all the chlorine is throughout the house‚ we let it sit for 24 hours to disinfect the pipes and the well. Then we flush the system so there is no more chlorine and resample the bacteria. If you have high nitrates or pesticides‚ then you should activate carbon and chlorinate at the end. If you have high metals‚ then you should add chlorine at
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chemical which is deadly or can cause injuries. For example‚ poisoned arrows‚ boiling tar‚ arsenic smoke and noxious fumes‚ and there are many more. Chemical weapons were first used in 1915. The germen military was the first to release 168 tons of chlorine gas at Ypres and Belgium which caused the death of 5‚000 allied troops. And 2 years after the first development of sulfur mustard was used in same battlefields. In World War 1 the sulfur mustard was the major cause of chemical casualties. During
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warfare relies on the physiological effects of specific chemicals. Chemical warfare was a great weapon in wars due to it being a silent‚ invisible‚ and a very deadly way to harm enemies. Chemical warfare started in 1915 where the German army used chlorine gas against the allied troops during World War I. There are many types of chemical warfare agents such as‚ choking gases and lung irritant agents‚ blister agents‚ blood agents‚ and nerve agents. Choking gases and lung irritant agents affect the breathing
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Chlorine in Photosynthesis Experiment Abstract Photosynthesis the means by which green plants and different types of organisms use light from the sun to synthesize foods from CO2 and H2O. Chlorine is a chemical element usually in the form of a yellow-green gas and is a strong oxidizing agent. Elodea is a type of aquatic plant also known as waterweed that is native to North America. In the experiment that took place‚ the effect of chlorine in the presence of photosynthesis reactions were studied
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Joe Schmoe Period 3 March 8‚ 2013 Lab Report: Empirical Formula of Zinc Chloride (ZnCl) * Purpose The purpose of this experiment was to learn how to determine the empirical formula. Empirical means “based on experimental evidence.” * Experimental Design The reaction that occurred was the reaction of the elements Zinc (Zn) and Chloride (Cl) by mixing a piece(s) of Zinc and 50mL of Hydrochloric Acid (HCl). The amount of Zinc was determined to be between 1.00g and 1.25g. As the reaction
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halogen element Any of the six nonmetallic elements that constitute Group 17 (Group VIIa) of the periodic table. The halogen elements are fluorine (F)‚ chlorine (Cl)‚ bromine (Br)‚ iodine (I)‚ astatine (At)‚ and element 117 (temporarily named ununseptium [Uus]). They were given the name halogen‚ from the Greek roots hal- (“salt”) and -gen (“to produce”)‚ because they all produce sodium salts of similar properties‚ of which sodium chloride—table salt‚ or halite—is best known. Because of their great
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reaction using thionyl chloride. The carboxylic acid is converted into an acyl chloride because the acyl chloride is more reactive. In this step‚ hydrochloric acid is formed from a hydrogen on the carboxylic acid and a chlorine from the thionyl chloride atoms binding together. A chlorine atom then attaches itself to a double bonded oxygen on the acyl chlorosulfite‚ kicking the double bonded oxygen’s electrons up making it negatively charged. The negatively charged
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bacteria which could cause infections to the people who use them. The disinfectant of choice for most hot tubs is chlorine‚ mainly because of its effectiveness‚ persistence in the water‚ and the familiarity with its properties. Since the 70’s‚ attention has been brought to chlorine disinfection by products and their dangers. These byproducts have been shown to be formed when the free chlorine reacts with NOM (natural organic material) in the water. In this report the focus will be on chloroform‚ one compound
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Chemistry Investigatory Project To determine minimum amount of Bleaching Powder Required to disinfect different samples of Water. INDEX I. Introduction o Purification of Water o History of Water Purification o Bleaching Powder II. Experiment o Aim o Requirements o Theory o Procedure o Observations o Result o Precautions Introduction 98% of the Earth’s water is present in the oceans with an average salinity of 3.5%. The remainder of the
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impacts on one’s health. Chlorine is also generally seen as a useful ion in water. It has been used to purify drinking water by killing microorganisms residing in it since 1904‚ and has seemed to do an excellent job. But recently chlorine in water has been
Free Ion Sodium chloride Sodium