Chemistry Write-Up The Thermal Decomposition of Sodium Hydrogen Carbonate Aim: When Sodium Hydrogen Carbonate (NaHCO3) is heated‚ Carbon dioxide and water are given off to leave a white powder. The aim is to find the equations for this reaction. Hypothesis: The experiment will prove which of the equations below is true. It will tell us whether Sodium Carbonate is produced or Sodium Oxide. 2NaHCO3 Na2CO3 + CO2 + H2O 2NaHCO3 Na2O + 2CO2 + H2O Variables: Independent: Original
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Mitigation of Disturbances by Shunt Active Power Filter Using Wavelet Transforms Abstract— The effect of Power Quality (PQ) Disturbances on power utilities are increasing day by day with wide spread use of non – linear loads. “Harmonics is one such disturbance which will cause the power system”. These disturbances are detected and compensated in a better means by using Active Power Filters (APF). The identification and reference current generation is carried out by using Wavelet Transform (WT) Theory
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minutes when combined with hydrogen peroxide? Aim: To see find out how the amount of catalase correlates with the amount of gas created when in combination with hydrogen peroxide. Materials: 15g of liver 25 ml of hydrogen peroxide 1 scale 1 bucket 1 100ml graduated cylinder 1 250ml flask with bung 1 50cm tube (able to fix onto top of flask) 1 stopwatch 1 100ml beaker 1 funnel 1 pipette 1 microscopy kit Variables: Independent: This is the amount of liver added to the hydrogen peroxide. The initial
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controlled because the process‚ which I am trying to speed up through adding catalysts‚ is an exothermic reaction‚ meaning that heat is given off in the process. Because it gives off heat‚ the temperature cannot be controlled and this would affect my results‚ as there would be more than one dependent variable. I was only allowed H2O2 from the same source‚ which means no fresh source of H2O2 at a controlled temperature. I could not wait for the H2O2 to decompose to a certain temperature because that would
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stress What is Stress? Stress can be defined as negative concept (Mental symbol use in denoting classes of things) which possesses the potential to influence a person’s psychological and physical wellness (Wikipedia: 2012) Stress can also be described as normal but physical responses to conditions‚ events‚ occurrences‚ situations which try to deprive us of our balance in anyway. For example‚ when somebody senses danger whether real or imagined‚ the body mechanism of defences immediately kicks
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The Result of the Treaty of Versailles I. With the end of World War I‚ the old international system was torn down‚ Europe was reorganized‚ and a new world was born. The European nations that had fought in the Great War emerged economically and socially crippled. Economic depression prevailed in Europe for much of the inter-war period‚ and debtor nations found it impossible to pay their debts without borrowing even more money‚ at higher rates‚ thus worsening the economy to an even greater degree
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That is where hydrogen fuel cells come into the picture. Rather than depending on a foreign countries oil‚ to provide fuel‚ businesses today should look to hydrogen as an alternative fuel source. The United States is too dependent on foreign oil. If something were to happen‚ like another war with the Middle East‚ we would not have any oil to power our cars or heat our homes. That’s why hydrogen is the answer. Everybody could make their own fuel for their country by creating hydrogen plants and buying
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re-fuel‚ launch‚ educate and distribute?) Benefits. No pollution: A great benefit of using Hydrogen fuel cells is that they give off no pollution‚ and in fact produce pure water as a byproduct. Even though currently engineers are concentrating on producing hydrogen from natural gas‚ it will be for a short-term. Scientists are planning to have renewable environmentally-friendly ways of producing hydrogen in the future. Efficiency: Fuel cells generate electrical power quietly and efficiently. Approximate
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The Eight Piece 18V 3.0Ah Li-Ion Cordless Combo Kit (DLX8010) is a large all-in-one kit from Makita. The kit includes eight different high-end tools‚ as well as batteries‚ a charger‚ and a large duffel bag to carry everything. It includes everything you need to start or significantly bolster your collection of high-quality power tools. Including a Hammer Driver Drill‚ a Circular Saw‚ a Rotary Hammer‚ and Five Other power tools in addition to the included bag and accessories. It seems like an incredible
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relation to this dilemma. Past research has shown that hydrogen fuel cells can quite possibly replace the country’s current usage of oil while having a more positive effect on the environment. However‚ environmentalists have conducted their own contradicting research on fuel cells reflecting negative effects on the environment. Numerous articles have been published which express both sides of this debate. Although some scientists believe hydrogen fuel cells will improve the environment and rid the United
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