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Need a Custom Written Essay on "Chemistry"?

Free papers will not meet the guidelines of your specific project. If you need a custom essay on Chemistry, we can write you a high quality authentic essay. While free essays can be traced by Turnitin (plagiarism detection program), our custom written papers will pass any plagiarism test, guaranteed. Our writing service will save you time and grade.

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Chemistry / Chemist
Becoming a chemist takes a lot of hard work and discipline. One very importan aspect of being a chemist is English, Comunication is of the utter most importance (Murphy). As well as having good communication skills, you also need a lot of patience. However, there are many other qualities you will need such as an excellent learning ability and mathematical skills. You will also need to be a...
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Cigarette smoking is one of the most powerful addictions known; even more powerful than a dependence on alcohol, heroin, or cocaine. To grasp this well-documented fact, one really doesn t have to study all the supporting scientific evidence. One simply has to consider that no other drug is self administered with the persistence, regularity and the frequency of a cigarette. Since its large-s...
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Chemistry / Copper/Silver Lab
Gayle Adkinson Director of Operations Adkinson Chemical Corporation Dear Mrs. Adkinson: A sample of copper has been produced as requested. We are pleased to report that the most copper has been produced through the most efficient method. But we regrettably to report that an accident had occurred during the process (which you will not be billed for). This accident led to a series of i...
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Chemistry / Dmitry Mendeleev
Dmitry Ivanovich Mendeleyev (1834-1907) Dmitry Ivanovich Mendeleyev was Russian chemist, known for his development of the periodic table of elements. This is a table created to arrange the elements by their atomic number. Mendeleyev was born in Tobolsk, Siberia. He studied chemistry at the University of Saint Petersburg, until 1859 when he was sent to learn at the University of Heidel...
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Chemistry / Dopamine
Dopamine As the chemical responsible for the pleasurable sensations felt by the human brain, dopamine has been found to be active in many aspects of every day life. Any physiological action that receives a positive feedback, such as a handshake, a kiss, or the use of a drug, can cause the level of dopamine activity in the brain to increase. Dopamine is a neurotransmitter th...
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EFFECTS OF CATNIP Purpose: To determine the effect of catnip on cats. Materials: 2 cats Cat Nip 5 cat toys (balls) - 2 with catnip inside; 3 without 1 cat nip mouse 1 Scratch Pad Procedure: 1. I sat with my cat and the toy balls. The balls were bounced one at a time, ...
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How does this Enzyme effect on this Biochemical Reaction? Purpose: The purpose of this lab was to discover the effects that certain enzymes have on chemical reactions. Were studying organic chemistry specifically, cells and proteins. The building blocks for proteins are enzymes and what better way to understand how they work than to watch them catalyze a reaction. Hypothesis: None really, just...
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Chemistry / Frankenstein 2
Victor Frankenstein was very interested in natural philosophy and chemistry and basically tried to play God by creating life. When he found the secret of activating dead flesh, he created a superhuman being composed of rotted corpses. What he did was considered unthinkable, and he was haunted by his own creation. When the monster escaped, Frankenstein knew that he had to deal with the conseque...
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Chemistry / Helium
Helium by I ain't telling you!!! Pierre Janssen discovered helium in the sun in 1868. Janssen originally thought it was sodium, but Joseph Norman Lockyer noticed that it didn't correspond to the D1 and D2 lines of sodium. He named it the "D3" line. Lockyer said that the element D3 was unknown on Earth. He and Edward Franklin concluded on the name Helios after the Greek god of the ...
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Chemistry / Hopes And Dreams
Hopes and Dreams Science has been the backbone of my life ever since my high school days in Malaysia. Although I studied many science subjects like Physics and Biology, I was especially fond of chemistry. My fondness of chemistry was attributed to my chemistry teacher Mr. Ang, in the eleventh grade who motivated me to explore every topic in great depth. He always gave me great advice, ...
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Becoming a chemist takes a lot of hard work and discipline. One very importan aspect of being a chemist is English, Comunication is of the utter most importance (Murphy). As well as having good communication skills, you also need a lot of patience. However, there are many other qualities you will need such as an excellent learning ability and mathematical skills. You will also ne...
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Chemistry / Josiah Gibbs
There are many greats when it comes to the history of chemistry, many in America. One such was Josiah Gibbs. He was a physicist and mathematician who made contributions to vector analysis, statistical mechanics and founded chemical thermodynamics.Josiah Willard Gibbs was born February 11, 1839 in New Haven, Connecticut. He was one of four children. His father, also Josiah Gibbs, was a t...
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Chemistry / Krypton
The element that I have chosen in . The people who discovered it are known as Sir William Ramsay and Morris William Travers. Sir William Ramsay and Morris William Travers were looking for new gases in the air when the discovered krypton (Kr). They called it krypton which is Greek for 'hidden'. Ramsay and Travers discovered this gaseous element in 1898. They discovered it by collecting ...
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Chemistry / Lead
subject = Chemistry title = Lead papers = Lead is a lustrous, silvery metal that tarnishes in the presence of air and becomes a dull bluish gray. Soft and flexible, it has a low melting point (327 テつ°C). Its chemical symbol, Pb, is from plumbum, the Latin word for waterworks, because of lead's extensive use in ancient water pipes. Itsatomic number is 82; its atomic weight is 207.19. Lea...
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Chemistry / Light
Light By David Carlson Light is emitted from many different sources. It comes from the sun, the moon, flashlights, light bulbs, and other things. It is essential to our everyday life. Without it we would stumble around and have no clue what is going on around it. The main source of light on Earth is the Sun. Without it their would be no life on Earth. Light travels at 186,282 m...
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[ABSTRACT]AbstractIn the late 1940s, few Americans had any idea what the long-term effects of nuclear radiation might be, and their government wasn't telling them. Dr. Linus Pauling had already won renown for his application of modern physics to the problems of chemistry when he took on the unpopular task of informing the public about the dangers of nuclear weapons. Pauling endured exclusi...
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Chemistry / Linuspauling
Linus Carl Pauling Linus Carl Pauling was born Feb. 28, 1901 in Portland Oreg. He has made major contributions in structural chemistry and molecular biology. Linus Pauling became interested in biological molecules, and he preformed magnetic studies on oxygen-carrying hemoglobin molecules with C. D. Coryell. Linus developed a structural theory of denatured and coagulated protein...
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Chemistry / Magnesium
Magnesium is a fairly abundant silver-white metallic metal, and is not found pure in nature. Magnesium (Mg) combines with most acids and non-metals, including but not limited to nitrogen, and has a melting point of 65 degrees Celsius, and a boiling point of 1,090 degrees Celsius. Magnesium was discovered by the English Chemist, Sir Humphry Davy, in the year 1808. Magnesium falls under the group...
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Abstract: The change in weight induced by a magnetic field for three solutions of complexes was recorded. The change in weight of a calibrating solution of 29.97% (W/W) of NiCl2 was recorded to calculate the apparatus constant as 5.7538. cv and cm for each solution was determined in order to calculate the number of unpaired electrons for each paramagnetic complex. Fe(NH4)2(SO4)2 6(H20) had ...
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Chemistry / Mercury
Mercury's atomic number is 80. It's mass is 201. Its density at 20 degrees Celsius is 13.456 g/cm cubed. It's silvery-white and flows very easily. It conducts electricity fairly well, but is a poor conductor of heat. It was known to Chinese and Hindus before 2000 BC and was found in Egyptian tombs dating back to 1500 BC. It was named after Mercury, the Roman messenger to the gods(Hermes in Gr...
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Abstract The percentage of water in Copper Sulfate Pentahydrate was found. Copper Sulfate was heated in a crucible to evaporate the water. The mass was weighed to find the difference before and after heating. By comparing these masses, the percentage of water was found. The percentage of water was found to be 34%. Theory Copper Sulfate Pentahydrate or CuSO + 5 H O is a solid compound....
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Chemistry: Water Pollution Phosphates in Water Pollution Phosphates may be created by substituting some or all of the hydrogen of a phosphoric acid by metals. Depending on the number of hydrogen atoms that are replaced, the resulting compound is described as a primary, secondary or tertiary phosphate. Primary and secondary phosphates contain hydrogen and are acid salts. Secondary and t...
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Pioneers In Ozone Research Win Nobel Prize Three fellows of the American Geophysical Union were awarded the Nobel prize in the area of atmospheric research by the Royal Swedish Academy of Sciences in 1995. The honored professors were: Paul Crutzen of the Max-Plank Institute for Chemistry in Mainz, Germany; Mario Molina of the Massachusetts Institute of Technology, and F. Sherwood...
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Chemistry / Platinum
subject = Chemistry title = Platinum papers = Please put your paper here. Platinum is a relatively rare, chemically inert, metallic element. It symbol is Pt, atomic number is 78, and its atomic weight is 195.09. Platinum is one of the heaviest substances known. One cubic foot of Platinum weighs 21 times as much as a cubic foot of water. A grayish-white metal, Platinum has a melting poin...
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Chemistry / Plutonium
Plutonium Plutonium, symbol Pu, is a radioactive metallic element. It has an atomic number of 94, and it is used in nuclear reactors and weapons. The element is one of the transuranium elements in the actinide series of the periodic table. Isotopes of plutonium were first prepared and studied by the American chemist Glenn T. Seaborg and his associates at the University of California at Berke...
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Chemistry / Quarks
In about 1900 it was theorized that the atom was composed of smaller particles. An atom is actually a system consisting of a cloud of negatively charged particles called electrons surrounding a nucleus, composed of positively charged protons and of neutrons, which have no charge. In the 1960s scientists discovered that protons and neutrons are composed of even smaller particles than first believ...
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Chemistry / Reactions
Chemical reactions are the heart of chemistry. People have always known that they exist. The Ancient Greeks were the firsts to speculate on the composition of matter. They thought that it was possible that individual particles made up matter. Later, in the Seventeenth Century, a German chemist named Georg Ernst Stahl was the first to postulate on chemical reaction, specifically, combus...
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Recrystallization Of An Impure Compound Lori Benkoski Organic Chemistry 12-11-97 Purpose/Question: The purpose of this lab is to recrystallize acetanilide by refluxing the substance, filtering it out, and comparing the original mass to the mass of the pure crystals. Equipment: Buchner Funnel 2.0 g acetanilide Charcoal filt...
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Properties Properties of Chlorine Symbol Cl Atomic Number 17 Atomic Weight 35.453 Group in Periodic Table VII A Density at 32テつ° F (0テつ° C) 3.21 Boiling Point -30.3テつ° F (-34.6テつ° C) Melting Point (under pressure) -149.8テつ° F (-101テつ° C) This element Chlorine is a poisonous, corrosive, greenish-yellow gas that has a sharp, suffocating odor and is two and half times heavier than...
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Chemistry / Sodium
Sodium Life could not exist without compounds of sodium. These compounds hold water in body tissues, and a severe deficiency of sodium can cause death. Blood contains sodium compounds in solution. Sodium compounds are used in industry in the manufacture of chemicals and pharmaceuticals, in metallurgy, in sodium vapor lamps, and in the production of hundreds of every day products. One of th...
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Chemistry / Terbium
Terbium What is Terbium? How and what is Terbium used for in everyday human life? Where is Terbium's origination point? Many people have never even heard of the element Terbium and you may ask why not? But all these questions and more will be revealed within the body of this essay. Terbium was discovered in a small Sweden town called Ytterby in the year of 1843, by a man named Carl G. M...
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Nitrogen This is the story of nitrogen, a significant element, a powerful element, and an often misunderstood or underestimated element. Nitrogen is one of the many elements on the Periodic Table. Like all the rest, nitrogen has its own set of unique properties, compounds, and features. This element plays an important role in modern technology and science. Although the average person may not...
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The Chemistry of Natural Water INTRODUCTION The purpose of this experiment is to explore the hardness of the water on campus. Hard water has been a problem for hundreds of years. One of the earliest references to the hardness or softness of water is in Hippocrates discourse on water quality in Fifth century B.C. Hard water causes many problems in both in the household and in the ind...
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How many people were killed or injured in WWI due to chemical weapons? According to the Chemical Weapons Convention web page 1,400,000 people were affected by chemical weapons. The most serious casualties were in Russia with 475,000 injuries and 56,000 killed. The problems of chemical warfare are upon us yet again. Saddam Hussein is currently trying to avoid weapon inspections by the Unite...
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title = The discovery of Fluorine The isolation of fluorine had challenged chemist for many years, taking the lives of at least two scientists in the process. Fluorine receives its name from the Latin, fluo, meaning flow. The first real attempt to free fluorine, was done by a chemist by the name of Humphyry Davy, between the years of (1811-1813). He first tried to liberate the element by ...
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Radium is a silver-white, highly radioactive element. It's atomic number is 88, and it is the heaviest alkali earth metal, having a mass number of 226.025 (See Figure 1). Radium has at least twenty six isotopes, and all are radioactive (Shriver 1995). Since radium is chemically similar to calcium and magnesium, it is absorbed by the bones of animals. Once in the bones, it emits alpha, beta, and ga...
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Chemistry / The Hypoxic Zone
This article is about a problem with the chemistry in a large area of the Gulf of Mexico. Basically, the problem is that every spring oxygen levels in the deepest parts of the water become so depleted that most local wildlife is suffocated or flees. This part of the Gulf of Mexico is called the hypoxic zone (obviously meaning low oxygen zone). The cause of the problem is the Mississippi Rive...
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Chemistry / The Radon Problem
THE RADON PROBLEM You can't see radon. And you can't smell or taste it, but it may very well be a problem in your home. It is estimated to cause many thousands of deaths each year. Radon is a cancer-causing, radioactive gas, and when you breathe air containing the gas, you can get lung cancer. In fact, radon has now been declared the second leading cause of lung cancer in the United Stat...
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The Role of Computers in Chemistry Over the last few decades, the technology of computers has improved in leaps and bounds. Computers have become faster and easier to use, taking milliseconds to do the calculations which once had to be done by hand. There are several areas of chemistry where computers have played a significant role, a few of them I will discuss. In synthetic chemistry it is ...
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The Scientific Significance of Buckyballs by ??????????????? Chemistry ??? Section ??? General Chemistry Prof. ????????????? Spring 199? Until the mid-1980's, elemental carbon was believed only to exhibit two main allotropic forms, diamond and graphite, both of which are covalent-network solids. However, Nobel Prize winning research conducted in the United States and Europe has con...
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Why nuclear fusion is so cool....... For a fusion reaction to take place, the nuclei, which are positively charged, must have enough kinetic energy to overcome their electrostatic force of repulsion. This can occur either when one nucleus is accelerated to high energies by an accelerating device, or when the energies of both nuclei are raised by the application of very high temperatur...
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Why Xenon Doesn't React Xenon is a rare, colorless, odorless, tasteless, chemically unreactive gas. It is one of the inert gas elements found in group 0 of the periodic table. Xenon was long considered incapable of chemical reaction, but in 1962 Neil Bartlett, a Canadian chemist, reported synthesis of xenon hexafluoroplatinate, XePtF6, a true compound. Before 1962, people thought that xenon ...
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Your Chemical World In today s world we rely on many different facets to achieve what we normally don t even give a second thought. As I am sitting here typing this paper I am simultaneously using the culmination of numerous chemical breakthroughs. The American Chemical Society (ACS) is a group of over 150,000 chemists, both academic and industrial. Your Chemical World, a book that the ACS h...
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