How do Bunsen Burners Work? Problems: How should a Bunsen burner be lit and adjusted to attain a blue flame? What is the hottest part of a Bunsen burner flame? Is burning the gas a chemical or physical change? Is it endothermic or exothermic? Hypothesis: The Bunsen burner should be lit by striking the match first‚ turning on the gas‚ igniting the gas‚ and adjusting the flame using the gas flow valve‚ the collar‚ and the table gas release to achieve a blue flame. I predict that the hottest part
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Inspect your fireplace and chimney. Call a professional chimney sweep if necessary. Perform seasonal maintenance on your hot water heater. Schedule a professional carpet cleaning. Clean and inspect dryer hoses and exterior dryer vents. Change furnace filter‚ and plan to change your filter every month during the winter. Monthly filter changes can really help reduce energy costs. Check your air ducts. Call a duct cleaning service if it has been a few years
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Experiment D: Separation of Alcohols by Fractional Distillation Pre-lab Properties: Propanol‚ butanol‚ methanol Purpose: To separate two alcohols by distillation and analyze results with GC. Do not plug mantle directly into electrical outlet‚ use controller! Use 40/60 mol percent propanol/butanol (no cyclohexane or toluene are used in this lab because they are more toxic) Set up fractional distillation Set heat at highest level to start‚ then turn back down to 60-80% when vapor starts up column
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Kyle Hammond Mrs. Hammock English 11 April 25‚ 2013 Essay “ The River-Merchant’s Wife: A Letter” ‚ “Nothing Gold can Stay”‚ and “The Life You Save May Be Your Own” are modernist works. “The Death of the Ball Turret Gunner and Night are contemporary works. Modernism is modern thought‚ character‚ or practice. It is the modernist movement in the arts‚ the sets cultural tendencies and associated cultural movements. Contemporary works are set and written in the time it was written. It makes use
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led to burning of crosses and 18 bomb attacks since 1957. The world witnessed peaceful civil rights marchers being deterred by police with attack dogs and cattle prods on television. The most horrific was fire hoses being turned on the demonstrators. The force of the high pressure hoses was enough to knock marchers to the ground‚ so much so that it would have taken out lose bricks from houses and stripped bark from a tree. To everyone’s dismay it jolted children down the road like tumbleweed.
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one on the buckets‚ fill it with water and add the car wash soap (I add as much as the directions on the bottle say to use). I then take the second bucket and fill it with plain water. Before I start washing my car I like to spray it down with the hose first. This really serves no other purpose than to blast of all the dead bugs and to loosen the dirt. I cannot stand scrubbing bugs off‚ but you can just as easily start washing your car without spraying it down first. The next step is washing! Put
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safer than smoking cigarettes? Hookah smoking is not safer than cigarette smoking. Also known as narghile‚ shisha and goza‚ a hookah is a water pipe with a smoke chamber‚ a bowl‚ a pipe and a hose. Specially made tobacco is heated‚ and the smoke passes through water and is then drawn through a rubber hose to a mouthpiece. The tobacco is no less toxic in a hookah pipe‚ and the water in the hookah does not filter out the toxic ingredients in the tobacco smoke. Hookah smokers may actually inhale more
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on the built-in dial micrometer is recorded at room temperature‚ then‚ steam is passed around it. The expansion of the metal is measured using the dial micrometer. Fill the boiler about one-half full of water‚ cap it loosely‚ and connect the rubber hose to its spout. Heat with a Bunsen burner. First‚ measure the length‚ L‚ of the rod using a meter stick and make an estimate of the uncertainty in the length and call this number all. Next‚ insert the rod into the aluminium jacket and put it in place
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Many of the great poems we read today were written in times of great distress. One of these writers was Randall Jarrell. After being born on May 6‚ 1914‚ in Nashville Tennessee‚ Jarrell and his parents moved to Los Angeles where his dad worked as a photographer. When Mr. and Mrs. Jarrell divorced‚ Randall and his younger brother returned to Nashville to live with their mother. While in Nashville‚ Randall attended Hume-Frogg high school. Randall showed his love for the arts while in high school
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plain white shirt with an attached collar‚ or a wing collar with a black bowtie is acceptable. (“How to Wear a Kilt”) Kilt hose are also important. “The turnover of the hose should be just above the calf but lower than the lowest part of the knee” in order to properly wear these socks (“How to Wear a Kilt”). The tights color is important and should be cream or black. White hose should not be worn unless you are a part of a military function. If garter flashes are being used‚ they should be clipped
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