Addition of carbon Combustion is the rapid burning of fossil fuels. Stored carbon in coal‚ oil and natural gas returns to the atmosphere when these fossil fuels are burnt and during natural combustion occurrences such as volcanic eruptions. Fossil Fuels such as coal are constructed when a living organism dies and decomposers‚ ie Fungi and microbes are unable to decompose it. After the organic material is untouched for millions of years‚ it eventually turns into fossil fuels. Petroleum‚ coal and
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Aim: i) To find the relationship between supplied energy and change in temperature of water. ii) To find the specific heat capacity (SHC) of water. Hypothesis: As time increases so does the temperature since the water is exposed to the heated wire for a longer period of time. Variables: The Dependent Variable is the temperature of the water‚ and since the Energy is calculated using temperature it is a dependent variable as well. The constant variables are the voltage and current. Theory:
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Chem 105 Guide to the Formal Laboratory Report The purpose of a formal report is to communicate effectively to another person the goal‚ procedure‚ data analysis method‚ and results of your laboratory work. The report is divided into several well-defined sections. Each section must be present in a complete report. To earn an outcome point for the laboratory report‚ a student must submit a formal lab report that earns a score of at least 90/100. Each error (factual‚ grammatical‚ typographical
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LAB REPORT NUMBER TWO DATE: 3/25/2010 inal attachment Lab Experiment number 11 PURPOSE: To learn the Gram stain technique‚ the reason for the stain‚ and how to identify the results of the organisms stained. MATERIALS: Bunsen burner‚ inoculating loop‚ staining tray‚ glass slides‚ bibulous paper‚ lens paper‚ oil‚ and microscope METHODS: Apply Crystal Violet (Primary stain) for 1 minute. Rinse with D-water Apply Iodine (Mordant) for 1 minute. Rinse with D-water. Apply Alcohol (Decolorize) for
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PROBLEM Investigate the heat energy in a range of alcohol’s used as fuels. HYPOTHESIS I predict that octanol will release the most heat energy. This is because there is more bond energy in that molecule than the other alcohols. Within a molecule there are bond energies that are holding the atoms together. When the fuel combusts a chemical reaction takes place‚ this breaks the bonds‚ this requires energy‚ and makes new bonds this gives out energy. The energy differences between the two tell us
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Aim To find out difference in the heat of combustion for different types of alcohols. Hypothesis The higher the number of carbon atoms in an alcohol is‚ the higher the energy for the heat of combustion. Alcohol is a homologous series‚ a series of organic compounds with similar formula and chemical properties‚ and increase in molecular size and mass. When the equations for combustion of these alcohols are listed in the order of increasing number of carbon atoms‚ Methanol 1 CH3OH(l) + 3/2 O2(g)
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Magnesium Mg(Z=12) in Group 2 Alkaline Earth Metals The structure of the element: Giant lattice metallic structure of immobile positive metal ions surrounded by a ’sea’ of freely moving mobile electrons (so-called delocalised electrons). Physical properties: A moderately hard silvery-white solid; mpt 649oC; bpt 1090oC; good conductor of heat/electricity. Group‚ electron configuration (and oxidation states): Gp2 Alkaline Earth Metal; e.c. 2‚8‚2 or 1s2 2s2 2p6 3s2; (+2 only) e.g. MgCl2
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Tim Readmond AP Biology Lab Report I. Title a. Modeling Diffusion and Osmosis II. Introduction a. If one places a 1.0 M solution of glucose inside a bag and then places that bag into a beaker containing a 1.0 M solution of sucrose‚ the percent of mass lost in the bag is 10.5%. The solution in the bag is hypertonic while the solution in the beaker is hypertonic‚ which is why water moves from the bag to the beaker and the bag loses mass. b. The purpose of this experiment is to see whether
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Lab Report 1 Introduction: Proper chemical formulas entitle many challenges such as the Law of Multiple proportions that states that there may be more than one plausible mole ratio for the elements in that compound. However if we determine the mass of each element in the compound we will be able to get the true chemical formula. In this experiment‚ we used the law of definite proportions to find the chemical formula for a hydrated compound containing copper‚ chlorine‚ and water molecules
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used and extracted‚ we could run out of oil in 50 years. We need to conserve what fuels we have left and stop using them in our cars. Another big problem with burning fossil fuels‚ especially gasoline‚ is the damage it causes to the environment. Combustion of fuels in cars has been identified as the largest contributor to air pollution in the world.
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