characteristics of a candle. Also the purpose was to find the remnants that the combustion of a candle leaves behind as gas. I learned that the candle that is burning releases a certain gas into the air. I also learned that limewater has a chemical reaction when exposed to that gas and turns red. Hypothesis: For this Lab‚ my hypothesis was that the candles are going from solid to gas because of a high and quick rise in temperature. Materials 1. Large birthday candles 2. Matches 3. One used disposable
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Abstract In the following project we are discussing about distillation. The operation of the distillation is employed for the purification of liquids from non-volatile impurities. The liquid is heated to the vapor phase and then is collected and recondensed to give back the pure liquid .The non-volatile impurities are left behind in the flask. Here our main focus will be at the fractional distillation. It is the process in which we separate the different components of a mixture on the basis of the
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Chemistry 105 A Final Exam 06/24/10 First Letter of last Name Dr. Jessica Parr Question 1 2 3 4 5 6 7 8 9 10 Maximum points 18 8 12 12 8 10 12 10 6 6 (Sub-T) PLEASE PRINT YOUR NAME IN BLOCK LETTERS Name: __________________________________________ Last 4 Digits of USC ID:_____ _____ _____ _____ Lab TA’s Name: _________________________________ Score (102) Grader Question 11 12 13 14 15 16 17 18 19 20 (Sub-T) TOTAL
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ribbon into a small‚ tight bundle. Tie it with a piece of thread (10 to 15 cm long). 4. Add about 10 mL of 3.0M HCl to a gas collection tube. 5. Hold the gas collection tube at an angle as you fill it completely with tap water‚ until it is nearly overflowing. Holding the tube at an angle allows the air bubbles to escape. 6. Place the magnesium in the mouth of the gas collection tube so that it is about three cm below the surface of the water. Fold the thread extension over the side of the
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INTRODUCTION: Oil and gas conservation means their better and more efficient use with regard to economic social or environmental costs and benefits resulting in attainment of higher energy use efficienciesm minimixation of wasteful practices. WAYS TO CONSERVE OIL AND GAS IN OUR DAILY LIFE: -The simplest way to conserve oil is to cut down the use of cars and bikes -Walk‚run or use bicycle or electric bike to reach your distination. It not only conserve oil but also
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Oil and Gas PricesOil and Gas 2There are many issues that cause the cost of oil and gas to increase. The main contributing issue to the increasing cost of oil and gas is supply and demand‚ when demand is greater than supply‚ the price of oil and gas will increase. The factors that affect supply include increased demand‚ problems with refineries and pipelines‚ and disruption to supply or threat of disruption to supply.With the increased demand for oil in the United States and other countries such
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Chemistry 12 Acetylene Lab March 8th‚ 2013 Hypothesis If the amount of gas is increase‚ it would have a fully combustion because it contains more carbon ions after the combination. Observation % of gas in the test tube ( approximately) % of O2 in the test tube (approximately) Black soot What kind of sound is produced? Trail# 1 70.00% 30.00% Yes (Whole test tube) “Puff” Trail# 2 50.00% 50.00% Yes “Puff” Trail# 3 10.00% 90.00% Few( head of the
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materials. Characteristics PCMs latent heat storage can be achieved through solid–solid‚ solid–liquid‚ solid–gas and liquid–gas phase change. However‚ the only phase change used for PCMs is the solid–liquid change. Liquid-gas phase changes are not practical for use as thermal storage due to the large volumes or high pressures required to store the materials when in their gas phase. Liquid–gas transitions do have a higher heat of transformation than solid–liquid transitions. Solid–solid phase changes
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research used a cold atmospheric pressure plasma jet system with an inclined style of treatment (gradient = 45o) as shown in Figure 1. This system was developed based on Teschke et al.32 Medical-grade argon gas (99.999% purity) produced by the Samator Company (Indonesia) was used as a carrier gas. Two aluminium foil ring electrodes were used around the quartz tube for this system. It had a quartz tube with a 1.5 mm inner diameter and a 2.7 mm outer diameter. The quartz tube was produced by the Fujiwara
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conditions‚ such as introducing a flame to the gas as well as oxygen and CO2‚ caused other reactions to occur. Hypothesis: If the gasses are correctly synthesized then there will be a clear reaction with the introduction of the flame‚ O2‚ CO2‚ Air‚ limewater‚ and Bromthymol indicator. Procedures: Step 1. I placed a small amount of Mossy Zn in the test tube and then added HCL. I used the rubber stopper and a pipet bulb to collect the Hydrogen gas synthesis. I filled the pipet bulb with water and
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