Abstract This paper discusses radon gas‚ which is produced as a byproduct of the natural decomposition of uranium in rocks‚ soil‚ and water. Gas build-up in enclosed dwellings such as houses‚ apartment and office buildings‚ factories‚ and schools is a major concern in many parts of the country. Human exposure to high concentrations of this gas for extended periods of time can be extremely damaging to health. Lung cancer has the highest mortality rate of any cancer‚ and it is estimated that 15%
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Organic vs Conventional Essay Organic food‚ which was once only found in health food stores‚ is now a regular feature at most grocery stores‚ and has created a bit of a dilemma in the produce aisle. On one hand‚ you have an organically grown apple. On the other hand‚ you have an apple that was grown conventionally. Both of these apples are shiny‚ red‚ and firm. Both provide us with vitamins and fiber‚ and both are free from sodium‚ fat‚ and cholesterol. Which should you choose? For many reasons
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of enzymes within our bodies is essential for human survival and when this ability is impaired by the presence of Hydrogen ions‚ our cells cannot function properly. This experiment was conducted to determine if the reaction rate changes in response to a variation of acidic‚ neutral‚ and basic solutions. The experimental results indicated that the basic/high pH solution has a faster rate of reaction in the solution. Introduction Enzymes are proteins that catalyze and convert molecules into combinations
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Hydrogen Automobiles The effect of pollution that is emitted from vehicles is a serious concern in today ’s society. The cause of this pollution is the toxic emissions from current vehicles. This toxic emissions or pollution destroys the Earth ’s ozone layer or atmospheric gases Acknowledging these facts‚ many are very concerned with the condition of the Earth ’s atmospheric gases in the future. In just a very short time‚ scientists produced a new vehicle which only emits water out of its exhaust
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The aim for this experiment is to investigate the effects of different storage environments on organic and non-organic bananas‚ to see which one lasts the longest over a period of time. The study was separated into 5 groups that were each labeled to a location in a standard family home that would‚ over time‚ begin to affect the overall form and characteristics of the bananas. Throughout the experiment‚ it was found that “Group 2 – Impact of Air Exposure‚” lasted longer than any other group. Following
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Executive Summary Product Medical Syringe Co. is one of the top leading providers of medical syringes to hospitals and clinics. We manufacture bulb syringes‚ Catheter Tip Syringes (feeding tube syringe)‚ Curved Tip Syringes‚ Feeding/ oral medication syringes‚ and insulin syringes. We also manufacture syringe and needle combinations as well. Target Market We intend to develop the markets in Singapore. According to the State Department‚ there is much opportunity to export into Singapore.
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City GM 208 Research Methods and Applied Statistics Catalyst for Excellence Society and the economy have changed hastily and erratically over the past decades that has been very reflective to the general socioeconomic trends worldwide. Nowadays‚ I must say if you don’t innovate and keep yourself updated you will lose track. Everybody aims to be on top and to get there? You have to be like a catalyst. A catalyst in chemistry is a substance that increase the rate of the reaction without
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Decomposition of Sodium Chlorate to Create Oxygen Gas Introduction: There are several types of chemical reactions. Those reactions include synthesis‚ decomposition‚ single replacement‚ and double replacement. In this experiment‚ we will be decomposing sodium chlorate to create oxygen gas. In a decomposition reaction‚ a chemical compound is being separated into elements or simpler compounds. AB → A + B is a simple way of expressing what happens in a decomposition reaction‚ AB break down into A
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www.igcse.at.ua ORGANIC CHEMISTRY OIL and its many useful PRODUCTS The origin of oil Crude oil is formed from organic material of the remains of plant and animal organisms that lived millions of years ago. These remains form sediments eg at the bottom of seas‚ and become buried under layers of sedimentary rock. They decay‚ without air (oxygen)‚ under the action of heat and pressure to form crude oil over millions of years. It is a fossil fuel because it is formed from
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point 1. What two effects do impurities have on the melting point of an organic compound? Soluble impurities affect the melting point of a solid in the following manner. a. The presence of an impurity in the molten compound reduces its vapor pressure thus lowering the melting point of the compound. b. Broaden the melting point range. 2. For what tow purpose are melting points routinely used a. To determine the identity of an organic solid. b. To determine the purity of an organic solid. 3. What
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