layer‚ liquid‚ gas‚ and paper‚ but for this lab paper chromatography will be used. Who invented chromatography? A Russian botanist named Mikhail Semyonovich Tsvet invented chromatography in 1901 while doing research on plant pigments. Why is chromatography so important? This is because over 60% of all chemical analysis is done with one of the four types of chromatography. Police also use it to test cocaine in urine‚ alcohol in blood‚ and lead in water. Other uses for chromatography include to determine
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Not only is cursive necessary for specifics as previously mentioned but it is also very important for general security. As a means of verifying thing like checks and documents “printed letters are easier to forge” (Steinmetz 3). This factor alone should be enough to keep cursive on the curriculum in all schools. Since it has no longer become
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Honor is a very important thing to have in order to be successful in all aspects of life. The great German-American writer H.L. Mencken once said‚ “Honor is simply the morality of superior men” (Brainyquote). Honor is something that every person should strive to have‚ as very few people have it. Honor has been around for a very long time. If one has honor‚ he is very valuable because he can be trusted with everything he does. Honor is the quality that allows one to be respected by their peers
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Summer MontClaire Jan. 15th‚ 2011 Period 8 Ms.Kay Why Math is Important When it comes to math‚ many people have always asked the question‚ “When will I ever do this again in real life?” and for some it is a hard question to answer‚ but for me it is simple. You use math everyday and probably do not even realize it. Math has been a part of our lives even since man lived in caves. For instance‚ if there were
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Modern Quinceañera’s are important milestones in a girl’s life. This manifestation symbolizes a girl’s entrance into womanhood when turning 15 years old. Quinceañera’s have a very valuable price tag that varies from place to place. However‚ Quinceañera’s aren’t just revolved around the child in Mexican Communities. Parents and Grandparents are a part of the celebration due to the fact they have raised their children up right. Throughout this essay‚ the typical Quinceañera in Mexican communities
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Salvation and the Importance of the Soul in the 15th Century In an era filled high infant mortality‚ short life expectancy‚ and daily public executions‚ it is no surprise that beliefs concerning salvation and the afterlife were something that was on the forefront of the minds of people living in Medieval and Renaissance era. For people living during this time‚ there was a heavy emphasis placed on the morality of one’s daily actions. People were unsure of whether or not they were predestined for
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Why Teachers are Important Teachers are important because they educate the students by preparing them for a triumphant future. The number of human beings in the world is increasing every second of every day which is why it is not a surprise that teachers other than special education teachers hold about three point five million jobs (McKay‚ Dawn R.). As each child grows older‚ he/she needs to learn in order to survive; teachers are the ones to instill knowledge (DeRoy). Every single person needs
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Books are very important to the development of a child because it not only helps them in school‚ but it also makes it easier for them to understand new subject matter. Reading is also important to an individual as it helps them to sort out relevant information from a pool of data that they may be presented with. It will also help a person to determine what they are interested in as they grow older. Books are important because they give us insight into stories and lives we otherwise wouldn’t be
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usually the second person we meet when we first enter a restaurant‚ after being seated by the host. The server is also the person who is to ensure we have excellent service. Many people eat out often and we may ask ourselves‚ “Do we leave a tip or not?” Why should we tip our server?” or there are only twelve of us so will $2.00 work?” We may not all agree with tipping‚ but we should tip. The average customer doesn’t realize how much a server makes hourly. We only see half of what our server is required
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You would think it would be easy to avoid colliding with a giant 200 ton train‚ well apparently it’s not. According to operation lifesaver‚ a nonprofit organization that promotes railroad safety‚ a car or pedestrian is hit by a train every 3 hours. Obviously some education is needed on being safe around railroads. Safety should always be your first priority when operating a vehicle‚ whether you are around a railroad or not‚ so here are some things to do to be more safe around railroads. First of
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