(limewater) 50 mL beaker (for indicator) Procedure My lab partner and I performed a series of experiments to investigate the chemistry of the burning of a candle. The teacher provided the following chemical equation to describe the burning‚ or combustion‚ in the candle: Hydrocarbon fuel + O2 CO2 + H2O The candle we used was a small‚ white emergency candle about 3.5 cm tall. The candle had already been used by someone else because I could see from the black wick that it had been lit before.
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So in wood combustion we observe solid wood disappear and be converted to gas products‚ leaving only some ashes. These are formed by minor components of wood that cannot burn and remain solid. 1. Explain what happens to the mass of a tree when it catches fire and burns until only ashes remain. You must include a chemical equation; discuss the chemical reactions taking place‚ and the law of conservation of mass in your answer. The wood from the tree has undergone a chemical change. When you burn
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Investigating How the Relative Molecular Mass Changes in Heat Combustion of an Alcohol Planning Introduction ============ As alcohol burns in air it gives out energy as heat and light. I am going to investigate how the energy output of an alcohol in combustion changes‚ with increased relative molecular mass‚ or RMM. RMM is the sum of the atomic masses of every atom in the molecule. Using the alcohols: Methanol‚ Ethanol‚ Propan-1-ol‚ Butan-1-ol and Pentan-1-ol‚ I will plan
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THE MICROSCOPE • Vol. 60:2‚ pp 63–72 (2012) C R I T I C A L FOCUS Brian J. Ford Solving the Mystery of Spontaneous Human Combustion L human combustion (SHC) ast November‚ a 42has been well docuyear-old man was In a matter of minutes‚ people have mented‚ and television has standing outside a record sought to demonstrate an store in Sweden‚ appar- burst into flames and were completely answer. But in the scienently waiting for someone. destroyed. All that remained was a heap
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The element‚ magnesium is unlike most because of the way it is composed‚ and many do not know what Magnesium is. The element has unique physical properties‚ a rich history that stretches back to the 17th century‚ and lots of sophisticated uses that are used in your everyday life‚ and vital to your health as a human. Magnesium’s properties are‚ in a way‚ very unique. On the periodic table Magnesium is found in the Alkaline Earth metal group. The structure of the atom consists of twelve protons‚
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Magnesium Deficiency in Cattle Introduction Grass Tetany is a common magnesium deficiency disorder in cattle that is caused by a variety of factors such as fertiliser use‚ soil properties‚ breed‚ age‚ climatic effects and management strategies. The following essay aims to outline the causes of magnesium deficiency as was as point out a number of treatment options and prevention methods available to the producer as well as ways for predicting magnesium deficiency. Improving control of this disorder
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great and tragic mistake. They should have been promoting magnesium. Magnesium deficiency leads to an increase in myocardial levels of both sodium and calcium. This is a problem because Coronary Artery calcium is a predictor of near-term coronary heart disease events. In the face of growing magnesium deficiencies calcium becomes increasingly more toxic to human physiology. It is magnesium that actually controls bone density not calcium. Magnesium drives the calcium into the bones where low levels encourage
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FUELS & COMBUSTION CALCULATIONS Unit 5 Prabir Basu TYPES OF FUELS FOSSIL FUELS Solid fuels (COAL) Liquid fuels (OIL) Gaseous fuels (NATURAL GAS) NUCLEAR FUELS RENEWABLE FUELS (BIOMASS) WASTE FUELS (MUNICIPAL WASTES) SOLID FUELS PROPERTIES HEATING VALUE ULTIMATE ANALYSIS PROXIMATE ANALYSIS ASH DEFORMATION POINTS Initial deformation temp. Softening temp. Hemispherical temp Fluid temp. LIQUID FUELS PROPERTIES HEATING VALUE
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Lean burn refers to the use of lean mixtures in an internal combustion engine. The air-fuel ratios can be as high as 65:1‚ so the mixture has considerably less fuel in comparison to the stoichiometric combustion ratio (14.7:1 for petrol for example). Contents[hide] * 1 Principle * 2 Chrysler Lean Burn computer * 3 Heavy-duty gas engines * 4 Honda lean burn systems * 4.1 Applications * 5 Toyota lean burn engines * 5.1 Applications * 6 Nissan lean burn engines * 6.1
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heat exchanger is a device built for efficient heat transfer from one medium to another. The media may be separated by a solid wall‚ so that they never mix‚ or they may be in direct contact.[1] They are widely used in space heating‚ refrigeration‚ air conditioning‚ power plants‚ chemical plants‚ petrochemical plants‚ petroleum refineries‚ natural gas processing‚ and sewage treatment. One common example of a heat exchanger is the radiator in a car‚ in which the heat source‚ being a hot engine-cooling
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