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    negative poles by what amounts to static electricity. This electrostatic attraction is termed a hydrogen bond. It is about 20 times weaker than the H – O bonds within any one water molecule, but still gives rise to considerable, transient adhesion, which packs the water molecules closely together in the liquid state. In contrast, as the temperature falls below about 4 ° C and ice begins to form, the hydrogen bonds between the molecules become longer lived. They eventually settle into a rigid, rather

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    Hydrogen chloride has a very powerful smell. It is in the form of a gas but only when it is at room temperature which is approximately 25 Celsius and when the pressure is high. When you add water to hydrogen chloride then it breaks down into small pieces which are known as dissolving. The solubility of hydrogen chloride is very high this means that it can dissolve in water quickly because it dissolves many times in its own solution (the gas form of hydrogen chloride). It is very soluble because

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    catalytic decomposition of hydrogen peroxide Research question: How will varying the concentration of hydrogen peroxide affect the rate of reaction measured by collecting the amount of oxygen produced figure 1 shows how catalyst provide alternate pathways Background: For my internal assessment I will be investigating the catalytic decomposition of hydrogen peroxide using manganese(IV)oxide( MnO2 ) as a catalyst. I will be testing how varying concentrations of hydrogen peroxide will affect its

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    Hydrogen Sulfide undergoes covalent bonding – where two or more non-metal atoms are held together by one or more shared pairs of valence electrons. The atoms forming a covalent bond must have a relatively equal attraction for electrons (electronegativity). Hydrogen has an electronegativity of 2.2 and sulfur of 2.58. Covalent bonds tend to also have low melting and boiling points due to weak intermolecular forces which break down quite easily (BBC, 2014). Substances that are bonded covalently are

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    Name University Course Instructor Date Quantum Physics Exam 3 Problem1. Hydrogen Essentials PART A: Make a plot of the energy levels of the hydrogen atom. Plot the energy values En in the vertical direction for n = 1, 2,3,4,5. Plot the orbital angular momentum quantum number in the horizontal direction for l = 0,1,2,3,4. For each n, show every allowed value of l. Label every energy level spectroscopically (1s, 2s, 2p, ...). Indicate the m degeneracy of each l level. Show that the total degeneracy

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    study of the amounts of substances that are involved in reactions. For this experiment kinetics is a huge part of it. Kinetics is explained as the reaction speed and or rate of reaction. To observe these reactions made by having reactants, sodium hydrogen carbonate, NaHCO3 known as baking soda and acetic acid, CH3COOH that is vinegar being mixed together. The products were carbon dioxide, water, and sodium acetate. Because this reaction will be based on its speed according to the difference in temperature

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    The purpose of this experiment was to analyze the rate of the catalyzed decomposition of hydrogen peroxide in regard to the effects of concentration and temperature. 2H2O2 (l) —I-—> 2H2O (l) + O2 (g) In part one of the experiment, catalyst KI was added to varying solutions of 3% hydrogen peroxide and DI water and the composition of hydrogen peroxide was observed. This was observed by collection the volume of oxygen gas produced during the decomposition, and measuring its volume. From that, volume

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    Chemical Reaction Essay

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    If you conduct the catalyzed decomposition of hydrogen peroxide in a closed vessel, you will be able to determine the reaction rate as a function of the pressure increase in the vessel that is caused by the production of oxygen gas. If you vary the initial molar concentration of the H2O2 solution, the

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    The dependent variable is the rate of decomposition of water which is measured by the volume of hydrogen gas and oxygen gas in cm3 The independent variable is the voltage here as I increase it from 9-14 Room temperature was 24 rtp and I carried out the whole experiment in the same room. If the temperature increases the rate of electrolysis will increase

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    Catalase Reaction Paper

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    reaction rate between catalase and H2O2 Figure 1 shows that the optimum temperature for catalase to catalyze hydrogen peroxide is around room temperature (30℃) as it has a very fast reaction rate (5). The overall trend is that temperatures that differ from 30℃, will decrease the reaction rate. Discussion This experiment supported the hypothesis, since catalase was the most effective with hydrogen peroxide when it was in an environment with a temperature of 30℃. It was expected that an extreme temperature

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    Essay On Hydrogen Storage

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    renewable fuel. Hydrogen address the issue of sustainability, environmental emissions like releasing of greenhouse gases in our environment and energy security. Hydrogen is consider most suitable element to replace fossils fuels because it the only element which is found in the abundance in the universe and it burns clean without releasing any greenhouse effect and it is only producing water and has the highest density per unit mass. However, as like FOSSILS FUELS hydrogen is not a

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    Essay On Catalase

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    substrate hydrogen peroxide forming the product water and oxygen. There is less hydrogen peroxide concentration as time is increased due to break down of the substrate. As time is increased more oxygen is given off, more water is formed resulting in a decrease in color intensity.

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    Essay On Aromaticity

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    flavonoids. The free radical searching activity is primarily attributed to the reactivities of the hydroxyl groups that participate in the reactions of the hydrogen abstraction. It is because of the arrangement of the hydroxyl groups that is located on the B ring affects ROS scavenging properties. The hydroxyl groups on the B ring donates hydrogen electrons to the free radicals which results in their

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    Hydrogen Fuel Economy

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    The environmental impact of a hydrogen powered economy The Production of hydrogen, how is it actually made?........ There are a number of ways that are used to generate hydrogen production, currently the main method is steam reforming from hydrocarbons such as natural gas. However is Hydrogen fuel efficient enough to replace fossil fuels in the future? Since the introduction of Hydrogen fuel to the world, scientists have been trying to improve this concept in many ways. A lot of support has been

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    Tertiary alkyl halides tend to give a mixture with both inverted and retained configurations at reaction centers. This is because this reaction proceeds through a stable carbocation intermediate and the carbon at the reaction center goes to sp2 hybridized state (planar geometry). The incoming nucleophile can attack from both sides of the plane and can give two products with retained and inverted configuration. If there is a partial interaction with the leaving group (nucleofuge) with carbocation

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    Alka Seltzer Lab Report

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    symptoms of pain. Alka-seltzer contains aspirin, sodium, hydrogen carbonate, citric acid, natural flavors, and artificial flavors. These are just some of the ingredients. When an alka-seltzer dissolves it releases all of the medicine. Alka-seltzer is an easy pain killer. What makes an alka-seltzer dissolve? The formula for an alka-seltzer is 3HCO3−+3H+→3H2O+3CO2. This is what makes it dissolve. Sodium bicarbonate or baking ions react with hydrogen ions then mixes ions with water, carbon dioxide gas

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    Methanol Synthesis

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    INDUSTRIAL SYNTHESIS Methanol is also known as wood alcohol because it used to be produced as a by-product of the distillation of wood. However, for modern-day methanol production synthesis gas is used. The synthesis gas must have carbon monoxide and hydrogen gas as its main components. The formation of

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    Introduction: In this experiment acid base indicators will be tested, using a red cabbage mixture. Substances can be classified as acidic or alkalinic depending on the concentration of hydrogen or hydroxide ions. The higher the concentration of hydrogen ions the lower the pH this means it will be an acid and the higher the concentration of hydroxide ions the higher the pH this means it will be an base(science prof online). A pH indicator is a solution or mixture that changes colour in the presence

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    AIM: The experiment is to investigate the effect of the change in the concentration of Hydrogen peroxide and sodium thiosulphate on the rate of reaction between potassium iodide (KI), hydrogen peroxide, Sodium thiosulfate (Na2S2O4) under acidic condition. Introduction: The rate of reaction can be defined as the rate at which the reactants are consumed of the rate at which product is formed. It is the ratio of the concertation of reactant used of concentration product to time, it measured in mol

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    extra 2.9 kcal/mol of energy compared to staggered conformation of ethane. This is due to the torsional strain. Torsional strain can be also defined as eclipsing strain. It arises from the repulsive force between the electron clouds in the Carbon-Hydrogen bonds which are not sharing an atom and cause the increase of potential energy since the bonds are closed to each other in eclipsed conformer. 1.0 CONFORMATIONAL STEREOISOMERS OF BUTANE Butane can be presented in an infinite number of conformations

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