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Category Title Body 
Chemistry A chemist  A 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 ... 
Chemistry Abstract from: cloning : where do we draw the line?  Abstract from: Cloning : Where Do We Draw the Line? The first attempt in cloning was conducted in 1952 on a group of frogs. The experiment was a partial success. The frog cells were cloned into other living frogs however, only one in every thousand developed normally , all of which were sterile. The rest of the frogs that survived grew to abnormally large sizes. In 1993, scien... 
Chemistry Acid base extraction  Acid Base Extraction The purpose of this laboratory assignment was two-fold, first, we were to demonstrate the extraction of acids and bases, finally, determining what unknowns were present. Second, we were to extract caffeine from tea. These two assignment will be documented in two separate entities. Introduction: Acid/base extraction involves carrying out simple acid/base reac... 
Chemistry Aids Michelle Lee Pelletier & Sarah Smith December, 16, 1998 Mr. Marquis Honors Chemistry Aids A.I.D.S is an epidemic of the nineties. There are over one million people infected with the HIV in the United States, and over 250,000 cases of Aids. The World Health Organization estimates that there are between five and ten million infected with the H.I.V virus. This number is rising ... 
Chemistry Analytical chemistry  Analytical Chemistry Analytical Chemistry is the branch of chemistry principally concerned with determining the chemical composition of materials, which may be solids, liquids, gases, pure elements, compounds, or complex mixtures. In addition, chemical analysis can characterize materials but determining their molecular structures and measuring such physical properties as pH, color, ... 
Chemistry Antibiotic resistance in bacteria  Antibiotic Resistance in Bacteria For about 50 years, antibiotics have been the answer to many bacterial infections. Antibiotics are chemical substances that are secreted by living things. Doctors prescribed these medicines to cure many diseases. During World War II, it treated one of the biggest killers during wartime - infected wounds. It was the beginning of the antibiotic era. ... 
Chemistry Asimov on chemistry by isaac asimov  Asimov On Chemistry by Isaac Asimov The Book Asimov on Chemistry by Isaac Asimov is a collection of seventeen essays that he wrote for The Magazine of Fantasy and Science Fiction. This book is one of ten that were published by Doubleday & Company, Inc. Not all of the books centered on chemistry and like science. Most just covered anything Isaac Asimov wondered about. These Essays ... 
Chemistry Biotechnology  Biotechnology Over the past decade, Biotechnology has advanced much to the advantage of many people. We have learned that with certain chemicals, we are able to cut-and-paste the DNA of certain organisms, and alter them to comply to our sociable needs. But this can also affect modern medicine, political factors, economic, and societal bala... 
Chemistry Chemical engineer  Chemical Engineer The chemical engineer is an invaluable link between scientific principles and manufacturing realities. It involves the use of chemical, physical, and engineering principles. The scientist in a laboratory does basic research to develop new compounds and processes. When the scientist discovers a product that may be useful, the chemical engineer takes over. They a... 
Chemistry Chemistry  Chemistry I am chemistry. I am mysterious and mature, malodorous, yet vivacious. I am a heaving search for answers to all kinds of interesting questions. I am extremely broad, that I overlap with all the other natural sciences. I am the fundamental unit of matter-the atom-only to be seen by the utmost effective microscope. I prosper in the dashing, fiery flames in a fragile glass beak... 
Chemistry Chemistry of natural water 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 industrial world. One of the largest problems with har... 
Chemistry Chemistry: acid-base titration  Chemistry: Acid-Base Titration Purpose: The objective of this experiment were: a) to review the concept of simple acid-base reactions; b) to review the stoichiometric calculations involved in chemical reactions; c) to review the basic lab procedure of a titration and introduce the student to the concept of a primary standard and the process of standardization; d) to review the calcu... 
Chemistry Chlorine  Chlorine Chlorine is (at room temperature) a greenish-yellow gas that can be readily liquefied at 5170 Tarr or 6.8 atmospheres, at 20 C (68 F), and has a very disagreeable odor. It"s Element Symbol is Cl, atomic number is 17, and atomic mass is 35.453. Chlorine"s melting point is -101 C or 149.8 F. The boiling point is -34.05 C or -29.29 F, at one atmosphere pressure. Chlorine is ... 
Chemistry Clinical chemistry tests in medicine  Clinical Chemistry Tests In Medicine Of the diagnostic methods available to veterinarians, the clinical chemistry test has developed into a valuable aid for localizing pathologic conditions. This test is actually a collection of specially selected individual tests. With just a small amount of whole blood or serum, many body systems can be analyzed. Some of the more common screenin... 
Chemistry Cloning of animals  Cloning of Animals On Sunday, February 23, 1997, Scottish researchers broke one of nature's greatest laws by cloning a lamb from a single cell of an adult ewe. This breakthrough opens the door to the possibility for the cloning of other mammals including humans. This remarkable achievement is being looked at as a great advancement in animal agriculture. But this achievement ... 
Chemistry Cobalt  Cobalt My report is about the element Cobalt. Cobalt is the 27th element on the periodical table and has an atomic number of twenty-seven. It has a symbol of Co. Cobalt¹s atomic weight is 58.9332. It has a melting point of 1,490š C. and a boiling point of 2,900š C. Cobalt looks almost exactly like iron and nickel. Cobalt is between iron and nickel on the periodical table ... 
Chemistry Color blindless  Color Blindless Color blindness is the inability to distinguish particular colors. It is generally an inherited trait, but can result from a chemical imbalance or eye injury. There are three primary colors. They are red, blue, and yellow. All other colors are the results of different combinations of primary colors. Special visual cells, called cones, are respon-sible for our abi... 
Chemistry Copper  Copper Blake Adams Period 3 Grade 8 2/5/97 Copper is a mineral. it is not a plant or a animal. Copper is a metallic metal. It can never be broken down into differnet substances by normal chemical means. Copper was one of the first metals known to humans. People liked it because in it"s native condition, it could easily be beaten into weapons or tools. Copper has been one ... 
Chemistry Crash course in density  Crash Course in Density Jonathan Cerreta Chemistry As flight 143, a twin engine 767, was passing over Red Lake on its was to Edmonton, Canada, the left front fuel pump warning light went on. There were a few possibilities for this to happen, such as the fuel pump failing, a fuel line clogging, or a empty fuel tank. The former two were easily dealt with, since the plane could fl... 
Chemistry Decomposition  Decomposition 12/09/96 Purpose: In this lab we will observe the products of decomposition of potassium perchlorate (KClO4). We will then predict from our results the correct chemical reaction equation. Procedure: 1. Weigh out about 4.0g of KClO4 in a test tube. Record the accurate weight below. Product Weight Before Weight After Mass of Test tube + KClO4 41.5g 39.8g Mass of Te... 
Chemistry Dna  DNA Deoxyribonucleic acid and ribonucleic acid are two chemical substances involved in transmitting genetic information from parent to offspring. It was known early into the 20th century that chromosomes, the genetic material of cells, contained DNA. In 1944, Oswald T. Avery, Colin M. MacLeod, and Maclyn McCarty concluded that DNA was the basic genetic component of chromosomes. Later,... 
Chemistry Do cleaning chemicals clean as well after they have been frozen  Do Cleaning Chemicals Clean As Well After They Have Been Frozen Problem: The researcher is trying to determine whether or not cleaning materials will clean as well if they have been frozen solid and subsequently thawed out until they have returned to a liquid state of matter. The researcher will use Dial Antibacterial Kitchen Cleaner, Clorox Bleach, and Parson's Ammonia, applied to... 
Chemistry Expansion on the recent discoveries concerning nitric oxide  Expansion on the Recent Discoveries Concerning Nitric Oxide as presented by Dr. Jack R. Lancaster Nitric Oxide, or NO, its chemical representation, was until recently not considered to be of any benefit to the life processes of animals, much less human beings. However, studies have proven that this simple compound had an abundance of uses in the body, ranging from the nervous syst... 
Chemistry Fossil fuels: our society's dependency  Fossil Fuels: Our Society's Dependency Natural Resources Report by Sean Falconer Chemistry 122 Mr. Hart 1997-02-07 Our society has become dependent on fossil fuels for energy. That seems fine for now considering the fact that everyone is generally happy in the present situation. Fossil fuels are relatively inexpensive and seem to be doing the trick right now. Using fossil... 
Chemistry Historical development of atomic structure  Historical Development of Atomic Structure Yazan Fahmawi Sept. 30, 1995 T3 IBS Chemistry Ms. Redman The idea behind the "atom" goes back to the Ancient Greek society, where scientists believed that all matter was made of smaller, more fundamental particles called elements. They called these particles atoms, meaning "not divisible." Then came the chemists and physicists of the 16t... 
Chemistry John dalton John Dalton John Dalton was a great help to modern day chemistry. He was born in 1766 in the small town of Eaglesfield, Cumbria, NW England in the UK. He was a chemist that stated an atomic theory of matter, which is now the theory of modern day chemistry. Besides his theories, he published the first major book of the studies of color blindness; which affected him. The book was published... 
Chemistry Lead 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 °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. Lead and lead compounds can be highly toxic w... 
Chemistry Marie curie  Marie Curie LIFE OF MARIE CURIE Marie Curie(1867-1934) was a French physicist with many accomplishments in both physics and chemistry. Marie and her husband Pierre, who was also a French physicist, are both famous for their work in radioactivity. Marie Curie, originally named Marja Sklodowska, was born in Warsaw, Poland on Nov.7, 1867. Her first learning of physics came from ... 
Chemistry Max planck  Max Planck Justin Thomas Period 4 Chemistry 10/08/96 On April 23, 1858 Max Karl Ernst Ludwig Planck was born in Kiel, Germany. He was the sixth child of a law professor at the University of Kiel. At the age of nine his interest in physics and mathematics was developed by his teacher Hermann Muller. When he graduated at the age of seventeen he decided to choose physics o... 
Chemistry Mitochondrion  Mitochondrion Mitochondrion are the power plant of a cell. The mitochondria are cells based within a cell that turn nutrients from chemical form into a more simple and usable substance for a cell to use as energy. These sausage-shaped organelles are not a true organelle, but more of a parasite that invaded primordial cells and evolved along with them. A mitochondrian"s main purpo... 
Chemistry Nutrition "You are what you eat", goes a famous saying. If that"s truly the case, then a lot of Americans would appear to be unhealthy, chemically treated, commercially raised slabs of animal flesh. While that is not a particularly pleasant thought, it is nonetheless a description of the typical American omnivore who survives on the consumption of big macs and greasy french fries. It"s true, and what h... 
Chemistry Pesticides  Pesticides are chemicals that are used to destroy pests. In the agricultural industry, pesticides are classified into two categories, carcinogenic and non-carcinogenic. A carcinogenic pesticide is a substance or agent producing or inciting cancer. Conversely, a non-carcinogenic pesticide is substance that does not produce or incite cancer. Most agricultural pesticides were registered in the ... 
Chemistry Photochemical smog  Photochemical Smog Gifted Chemistry IB Alternative Assessment 1997 March 19 Historically, the term smog referred to a mixture of smoke and fog, hence the name smog. The industrial revolution has been the central cause for the increase in pollutants in the atmosphere over the last three centuries. Before 1950, the majority of this pollution was created from the burning of coal for ... 
Chemistry Phytoremediation  Introduction: In recent years it has become clear that some environmental chemicals can cause risks to the developing embryo and fetus. Evaluating the developmental toxicity of environmental chemicals is now a prominent public health concern. The suspected association between TCE and congenital cardiac malformations warrants special attention because TCE is a common drinking water contaminan... 
Chemistry Platinum  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 point of 1772 degrees C and a realatively high boiling point of 3827 degrees ... 
Chemistry Plutonium  Plutonium Plutonium is a radioactive metallic element. Although it is occasionally found in nature, mostly all of our plutonium is produced artificially in a lab. The official chemical symbol for plutonium is Pu, coming from its first and third letters. Its atomic number is ninety-four. Plutonium is able to maintain its solid state until very high temperatures, melting at six hundred... 
Chemistry Pressure relief valves PRESSURE RELIEF VALVES Chemical Engineering Lab I Group Project Group II Members: Kuntu Satterwhite, Janique Ricketts, Teresia Kiangi Report Submitted: 14th April, 2000 Question: Discuss the importance of Relief Valves in the unit operations in detail, and give the design criteria/ parameters/ models available equations in the literature. Support y... 
Chemistry Prions  Prions Prions have been a mistery for scientists from the day they where discovered. Prions act like viruses but they are not. Their structure and chemistry are unknown. They are believed to be proteins but that is yet to be completely proved. Prion stands for "proteinaceous infectious particles". Prions are known to cause many diseases involved with nervous systems like the brai... 
Chemistry Quarks  Quarks Quarks- any group of subatomic particles believed to be among the basic components if matter Quarks are believed to be the fundamental constituents of matter, and have no apparent structure. They are the particles that make up protons and neutrons, which make up the nucleus of atoms. Also, particles that interact by means of the strong force, the force that holds parts of ... 
Chemistry Robert boyle  Robert Boyle Robert Boyle is considered both the founder of modern chemistry and the greatest English scientist to live during the first thirty years of the existence of the Royal Society. He was not only a chemist and a physicist as we know him to be, but also an avid theologian, a philanthropist, an essayist, and a beginner in medicine. Born in Lismore, Ireland to Richard Boyle, ... 
Chemistry Science 1. periodic law-law that states the physical & chemical properties of the elements are periodic functions of their atomic numbers 2. group-column of elements in the periodic table; family 3. family-column of elements in the periodic table; group 4. period-horizontal row of elements in the periodic table 5. metal-element that is a good conductor of heat & electricity, is shiny, has a h... 
Chemistry The atom An atom is the smallest unit of matter that is recognizable as a chemical ELEMENT. Atoms of different elements may also combine into systems called MOLECULES, which are the smallest units of chemical COMPOUNDS. In all these ordinary processes, atoms may be considered as the ancient Greeks imagined them to be: the ultimate building blocks of matter. When stronger forces are applied to atoms... 
Chemistry 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 industrial world. One of the largest ... 
Chemistry The chlorine debate: how white do you want it?  The Chlorine Debate: How White Do You Want It? Chlorine is one of the world's most widely used chemicals, the building element vital to almost every United States industry. We use chlorine and chlorine-based products whenever we drink a glass of water, buy food wrapped in plastic, purchase produce in the supermarket, pour bleach into a washing machine, have a prescription filled, pr... 
Chemistry The element: chlorine  The Element: Chlorine General Information We researched the chemical element known as chlorine. Chlorine has an atomic number of 17 and an atomic weight of 35.453. It has a valence number of 3. The element has 3 energy levels. Chlorine exists as a greenish-yellow gas at normal temperatures and pressures. Chlorine is second in reactivity only to fluorine among the halogen eleme... 
Chemistry The quicksilver  The Quicksilver Chemistry I October 25, 1996 One day an ancient alchemist was sitting at his and noticed a strange silvery liquid-like metal. He called several of his colleagues over to admire it. It was passed down through the years, this chemical reaction, that formed this "Quicksilver" as the alchemists called it. One day a French chemist Antoine Laurent Lavoisier tested... 
Chemistry The role catalysts in chemical reactions, their importance in industry, problems and new developments  The Role Catalysts In Chemical Reactions, Their Importance In Industry, Problems and New Developments OXFORD AND CAMBRIDGE SCHOOLS EXAMINATION BOARD. General Certificate Examination - Advanced Level Chemistry (Salters') - Paper 3 mock. ROBERT TAYLOR U6JW. A Catalyst is a substance that alters the rate of a reaction. The catalyst remains unchanged at the end of the reaction. The p... 
Chemistry The safety inspector  The Safety Inspector Mr. Redos, I am an inspector for the OSHA. I have noticed the following safety objects missing in the room F 203, chemistry room. These are sprinklers, a drain, and a glass wall. You must have these objects for the safety of the students and the faculty. I have also observed the following safety objects present in the regarded room. Fire blanket, fire exting... 
Chemistry The sequence of chemical reactions  The Sequence of Chemical Reactions Drew Selfridge Dave Allen, Lab partner Instructor Yang February 11, 1997 INTRODUCTION This experiment was to recover the most amount of copper after it is subjected to a sequence of reactions. The copper is originally in solid form, but the reactions will turn it into free Cu+2 ions floating in solution. The ions will then be regrouped to form... 
Chemistry Through a narrow chink: an ethical dilemma  Through A Narrow Chink: An Ethical Dilemma by Pablo Baez Chemistry 104 Prof. Holme In 1951 Carl Djerassi, with the Mexican pharmaceutical company Syntex, developed the first oral contraceptive by synthesizing and altering the natural hormone Progesterone into a superpotent, highly effective oral progestational hormone called "norethindrone". Admittedly, the dynamics and impo... 
Chemistry Titanium Name: Titanium Symbol: Ti Atomic Number: 22 Atomic Mass: 47.867 AMU Titanium was discovered in 1791 in the mineral named Menachanite. By the British clergyman William Gregor. He named the element menachite. Four years later, the German chemist Martin Heinrich Klaproth rediscovered the element in the mineral Rutile and named it titanium for the strength of the mythological Greek Titans... 
Chemistry Uranium Uranium is a silvery-white element possessing a very radioactive and oxidizing character. Uranium retains a density of 19.07 grams per cubic centimeter and a melting point of roughly 1,132 degrees centigrade. With a boiling point of approximately 3,818 degrees Celsius uranium is not an easy element to get to a melting or boiling point. The Periodic Table says that uranium has 92 protons an... 
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