Water fluoridation

On May of 1980, Jimmy Carter who was the President of the United States at that time issued an emergency disaster declaration, based on the mental distress the residents of the Love Canal had experienced, instead of the chemical and physical hazards the community was exposed to. The state of New York subsidized the project and sold the houses at a lower rate with the intention to end the disaster that occurred in the area, as both New York and the city of Niagara Falls wanted to put to rest and…

attracted to the white or colored “nurdles”, possibly thinking it is fish eggs or food of some kind. The plastics are ingested and the toxicity is transferred to the fish tissue and magnifies up the food chain. Any oceanic animal that filters the ocean water through their system is affected by the plastics that have been broken down by UV rays into smaller and smaller pieces. Many of the harmful effects are impacting the endocrine systems of the ocean animals. Third world countries have no clue…

through a thermal decomposition reaction that causes it to dissociate into potassium chloride and excess oxygen. The gummy bear is mostly made up of sugar and causes a combustion reaction when mixed with the excess oxygen. Carbon dioxide and gaseous water are released as a result of the reaction. The purple flames that arise are the result of an exothermic reaction and heat being released is the result of an energy transformation. Although there are many chemistry concepts exhibited in this…

metal surfaces are exposed to. Therefore, metal surface acquire different potential between different aerated areas. It has been found experimentally that poor-oxygenated parts are anodic. Examples:  The metal part immersed in water or in a conducting liquid is called water line corrosion.  The metal part partially buried in soil. If the metal is partially immersed in the electrolyte, the area above the liquid is more aerated and becomes cathodic area and that area which…

the more reactive the element will be. Materials: Safety glasses 0.2M potassium chloride solution Black tray 0.2M potassium bromide solution Spotting tile 0.2M potassium iodide solution Teat pipette chlorine water Distilled water bromine water Iodine water Procedure:…

In this experiment I will prepare a pure sample of an element (copper) by making a copper solution and then plating it out onto a more active metal. HYPOTHESIS: Because Copper is a more active metal than Iron, I believe the copper solution will plate onto the iron nail. PURPOSE: The purpose of this experiment is to observe reactions between metals depending on which one is more active and observe how to clean pennies, while making a copper solution. RAW MATERIALS: Two plastic cups Clover…

Introduction: Corrosion, otherwise called rusting is defined as a natural process that changes over a refined metal to a more chemically stable shape, for example, its oxide, hydroxide, or sulfide. It is the slow destruction of materials (generally metals) by a chemical reaction caused by the environment. Corrosion is basic to ponder in two perspectives. Right off the bat, financial, which including the lessening of material misfortunes coming about because of the squandering ceaselessly or…

RESULTS AND DISCUSSIONS Prior to capture the P.putida behavior in metabolic modelling experiments, Growth and productivity level of PHAs in Pseudomonas putida was assessed by various types of carbon sources in shake flask and batch cultivation. In the PHA production process, productivity level is influenced by the availability and types of carbon source Production of PHA in shake flask condition Shake flask cultivation of P.putida was carried out with various types of carbon sources.…

The purpose of this lab was to identify the amount of salt needed in the water to “flink”, the point at which an object sinks or floats, the golf ball in a salt solution. Flinking occurs when the object is neither sinking or floating, it appears as if it is suspended in the middle of the solution. To flink an object, the object’s density has to have the same as the density of the solution that it is placed into. To achieve the same density of both the salt solution and golf ball, manipulation of…

beaches, clear azure water, palm trees, and many resorts. It is truly paradise, in every sense of the word. We spent four perfect days in Phú Quốc, living the luxury vacation life. We stayed at Eden Resort, a massive, four-star, beach-front resort hotel that cost less than a Motel 6 in the states. For a few days, we lived a champagne lifestyle on a beer budget. This was also unfortunately when I got sick, but I still had a fantastic time. The weather was lovely and sunny, the water was warm, and…