(It has a lot of grammar mistakes) Except for the rain that’s been crashing for hours and the house-shuddering wind that howls through the darkness outside‚ it’s an ordinary evening at my house. Then comes a knock on the door. I’m not expecting anyone. I look through the peephole‚ but the condensation from the wet night air has fogged it to uselessness. So I simply open the door and find a familiar man‚ I can’t recognize his face. I notice the fire that made the sky goes red‚ the air
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Essay I died for beauty but was scarce The poem "I died for Beauty- but was scarce" is a short poem‚ but has a powerful underlying tone that gives the reader chills. In the poem‚ the narrator states she died for Beauty. In stating this‚ she implies that perhaps that’s also what she loved for. In the adjoining room to hers‚ another person is laid to rest. The person buried in the tomb next to hers says he died for Truth. He wonders why he failed‚ as if by living for Truth he could master eternal
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On Dumpster Diving In the essay “On Dumpster Diving” author Lars Eighner narrates his experiences of scavenging. This well-known author‚ though being incredibly talented‚ had to work as a counselor at a drug crisis center in Austin‚ to earn a living. After losing his job‚he unfortunately had to move out of his home and live the hard life on the streets. The essay talks about the author’s survival on the streets and expresses his ethical dilemma. The author was surprised by the large amount of
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Module name: Physical Chemistry (CP 4117) Experiment: Heat of decomposition of hydrogen peroxide Lecturer: Dr Cheow Name: Loganathan Admin number: 1246102 Contents No. | Contents | Page | 1 | Abstract – a precise summary about the whole experiment and report. | 3 | 2 | Introduction to the experiment - a brief outline and relevant theory for the experiment and calculation | 3-4 | 3 | Procedure for the experiment
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The Chemistry of Decomposition Decomposition is defined as the biological and chemical changes a body undergoes after death. It is the decay of tissues and structures. There are two types of decomposition: abiotic and biotic. Abiotic decomposition is defined as the degradation of a substance by chemical or physical processes; such as hydrolysis‚ reduction‚ or oxidation. Biotic decomposition is the metabolic breakdown of materials into simpler components by living organisms. This is typically
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The Decomposition of Potassium Chlorate Hypothesis: Potassium chlorate decomposes into potassium chloride and oxygen gas‚ which means that when the glowing splint is inserted into the test tube‚ the flame will have enough fuel to fully reignite the splint. When the manganese dioxide is added‚ this will increase the rate of the production of oxygen in the reaction‚ without affecting the state of the manganese oxide. Materials: Test tube Retort stand Bunsen burner Scoopula Flint sparker 2cm of potassium
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AIM: To carry out a lab experiment to decompose a carbonate using heat‚ also to carry out appropriate tests for the formation of products as a result of this decomposition. DISSCUSION: Carbonates are decomposed by heat into the corresponding oxides and carbon dioxide. The temperature of decomposition depends upon the activity of the metal; that is to say‚ the more active the metal‚ the more stable is the carbonate. Thus‚ the carbonates of sodium and potassium are stable at the highest temperature
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A plot of against gives a straight line. Example 4 The Arrhenius parameters which define the Arrhenius equation for the decomposition of cyclobutane are In (A/s-1) = 15.6 and Ea = 261 kJ mol-1. Determine the half-life of cyclobutane at the temperature of 773 K. C4H8 (g) 2 C2H4 (g) The decomposition of cyclobutane follows first order kinetics as the unit of A is s-1. Comment: The units for A provide information on the reaction’s overall order of kinetics
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The Decomposition of Baking Soda Purpose: - To determine the correct balanced equation for the decomposition of baking soda using % yield. PreLab Notes: Sodium Bicarbonate (Baking Soda) decomposes when heated yielding both gaseous products and solid products. The production of gas makes baking soda a leavening agent in baked goods. The trapped bubbles of gas give muffins and cakes a lighter‚ airier texture. When heated‚ baking soda decomposes in one of the following unbalanced equations.
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proportional to the rate of decomposition. Independent Variable The mass of MnO2 used Dependent Variable The rate of decomposition through the amount of mass lost Controlled Variables Environment of the experiment Stay in the same place to carry out the experiment and finish the experiment as fast as possible in case of a sudden change in some areas of the environment Volume of H2O2 used Measure the volume using a measuring cylinder Uncontrollable Variable The temperature of the H2O2 cannot be controlled
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