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Chemistry /
Anorexia/ Bulimia
Anorexia/ Bulimia
Anorexia Nervosa is an illness that mainly affects adolescent girls although it can occur both in boys or girls younger or older than this. The most common features are loss of weight coupled with a change in behavior. The weight loss is slowly progressive and often starts with a perfectly normal weight reducing diet. It may only be after this has continued for several months...
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Chemistry /
Atoms
The molecular structure hypothesis - that a molecule is a collection of atoms linked by a network of bonds - was forged in the crucible of nineteenth century experimental chemistry. It has continued to serve as the principal means of ordering and classifying the observations of chemistry. The difficulty with this hypothesis was that it was not related directly to quantum mechanics, the physics w...
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Chemistry /
Carl Pauling
Carl Pauling
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 molecules. He was interr...
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Chemistry /
Chemistry And Without It!
What would the world be like without chemistry? In some way it could be good and in others it would be bad. We would be without so many good and also bad things if we didn t have it and we can t leave either one out. I mean without chemistry we wouldn t be able to have such a good chemistry class, or such a good teacher. The bad things I think I could do without and I think other people could...
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Chemistry /
Chromatography Research
Chromatography Research
Most likely, the average person off the street couldn't tell you exactly what chromatography is. I, however, can tell you this, and much more relating to the subject. Chromatography is defined by Webster's Dictionary as "a process in which a chemical mixture carried by a liquid or gas is separated into components as a result of differential distribution of the solutes ...
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Chemistry /
College Admision
Being accepted into College would open up a lot of opportunities for my future. Ever since I was a child, I have been in awe about how computers operate. At the age of fifteen, I got a summer job at Fallon Clinic, doing computer repair and computer networking. Later I proceeded to build a computer out of spare parts, and from then on I have wanted to be a computer engineer.
I have always lov...
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Chemistry /
Comparison Of Chinese And Isl
During the first millennium CE, two great civilizations, China and Islam, arose. Both of these civilizations had cultural advantages over other peoples and had a great deal of influence on all who they came in contact with. These civilizations were similar in the way they interacted with other civilizations. This interaction took place through trade, religion, and war.
China interacted throu...
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Chemistry /
Copper Report
Copper comes from a Latin term cyprium (after the island of Cyprus) meaning "the metal of Cyprus." Copper dates back to prehistoric times but has been mined for 5000 years, however it's exact discoverer is unknown. Cu is Copper's chemical symbol. It contains 29 protons/electrons (atomic number) and 35 neutrons. It's atomic weight is 65.39. Copper is an orangy, red metal that is found in ore...
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Chemistry /
Fatboy Slim Bio
Fatboy Slim
With Fatboy Slim albums, the clue is always in the title, and Norman Cook's third outing is no exception. Norman was staying at LA's Chateau Marmont hotel, when the title came to him. As the New Year dawned Norman ventured back into his home studio in Brighton, England to make the most emotional, innovative album of his career. Norman explains the progression by pointing out that "T...
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Chemistry /
Harold Urey
Harold Clayton Urey Papers
Background
Harold Clayton Urey was a scientist of considerable scope whose discovery of deuterium
helped him win the Nobel Prize for Chemistry in 1934. Urey also made fundamental
contributions to the production of the atomic bomb through his development of the
isotope separation processes for the Manhattan Project. In the period following World
War II, Urey playe...
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Chemistry /
Move The Exams
There are two types of college students. Ones who were sent to college with mom s and dad s money and the others who work their way through school. There is no doubt that the stress that coming with juggling work and school is higher than average college student. For this working student, there requires a lot of thought, planning and secluding a routine that will satisfy both school and work....
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Chemistry /
Nuclear Chemistry And Nuclear Weapons
Nuclear Chemistry and Nuclear Weapons
The field of nuclear chemistry is so broad and varied that there is no universally accepted definition for it. This is because it is a subject, with its origins springing from areas such as physics, biology, and chemistry. Nuclear chemistry has contributed to numerous important discoveries in our knowledge of the nucleus and has also provided advancements...
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Chemistry /
Robert Bunsen
Robert Wilhelm Bunsen s name was famous for a a few discoveries in the field of chemistry. For example you might recognize Bunsen from the lab device, the Bunsen Burner . He also helped invent the spectroscope and discovered spectrum analysis. And at the beginning of his career, he discovered that iron oxide is an antidote for arsenic.
Robert Bunsen was born on March 31st, 1811 in Gottinge...
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Chemistry /
Robert Penn Warren
ROBERT PENN WARREN
Robert Penn Warren was born in Gutherie, Kentucky in
1905. After graduating from high school, he moved to
Nashville, Tennessee to attend Vanderbilt University.
Warren began his study working toward a major in Chemistry.
Soon, the English Professors and Poets, Donald Davidson and
John Crowe Ransom won him over into the analysis of
Literature and Poetry.
Robert's ...
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Chemistry /
The History Of The Atom
THE HISTORY OF THE ATOM
I am doing my project on the history of the atom. The atom was not just thought up overnight it took thousands of years of research and experimenting, but was finally finalized bty Dalton. Dalton was curious about many things but most of all he wondered how substances combined. He discovered that if you combine two substance, you got a new completely different substance....
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Chemistry /
The Three Basic Laws Of Chemis
John Dalton was born in 1766 and died in 1844. Around 1803 he developed the first atomic theory of matter. He was a meteorologist and was very important to study of chemistry. Dalton discovered the three basic laws of chemistry. The law of conservation of mass, The law of definite proportions, and The law of multiple proportions.
The law of conservation of mass was first stated by Antoine L...
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Chemistry / Air Pollution
CHEMISTRY IS THE STUDY OF MATTER ANDTHE CHANGES IT UNDERGOES. THESE CHANGES OCCUR WHEN THE ATOMS OF A SUBSTANCE ARE REARRANGED TOMAKE A NEW SUBSTANCE. THIS IS CLASSIFIED AS A CHEMICAL REACTION. BUT BEFORE YOU GET INTO A CHEMICAL REACTION YOU MUST LEARN ABOUT WHAT MAKES UP A CHEMICAL SUBSTANCE. mATTER IS VERY IMPORTANT IN THE SUBJECT OF CHEMISTRY. MATTER IS ANYTHING THAT TAKES UP SPACE. MA...
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Chemistry / Alfred Nobel
Alfred Nobel was born in Stockholm on October 21, 1833. By the age of 17 he was fluent in Swedish, Russian, French, English and German. Early in his life he had a huge interest in English literature and poetry as well as in chemistry and physics. Alfred's father disliked his interest in poetry and found his son rather introverted. In order to widen Alfred's horizons his father sent him to...
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Chemistry / Athletic Training
1. The occupation is an athletic trainer. The job description is to work with
athletes in an effort to prevent injuries. They work in amateur and professional sports. Once injuries occur, the athletic trainer is required to evaluate the problem and get the athlete the proper medical treatment. He or she also makes sure that athletes are physically ready and able to play after an injury....
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Chemistry / Basic Tools For Chemistry
Introduction:
The meaning of this experiment was to understand and use the basic tools for chemistry. During this experiment, many calculations were taken from data collected. We had to make sure measurements were taken accurately in order to complete the right equations. Using these equations we could determine volume, weight, and masses of specific objects. Also, we were introduced to ...
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Chemistry / Biology
Why is knowledge of chemistry important to biology?
Maier, Scott
Advanced biology
10/7/99
Biology is the study of all living things and chemistry is the study of chemicals and their interactions. So, how are they related?
Our bodies are made up of hundreds and hundreds of chemicals. We just don’t think of them like that. Did you ever wonder how your body turns food into energy? It...
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Chemistry / Chemical Compounds Bromine
The element Bromine, is a red liquid which is explosive at room temperature and has a
red brown vapour. It has an atomic number of 35 and an atomic mass of 79.909. The
melting point of Bromine is -7 deg.C and the boiling point is 58 degC with a relative
density of 3.1.
Bromine is a volatile dense mobile, that is a reddish brown liquid, which quickly
gives a brown toxic valour with...
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Chemistry / Frankenstein
Victor Frankenstein was very interested in natural philosophy and chemistry and
basically tried to play G-d 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 t...
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Chemistry / Frankenstein - Book Report
The story of Frankenstein by Mary Shelley is about a man who created something that messes with nature, and nature came back to mess with him because nature is more powerful than man.
Victor Frankenstein was very interested in natural philosophy and chemistry and basically tried to play G-d by creating life. When he found the secret of activating dead flesh, he created a superhuman ...
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Chemistry / Huntingtons Disease
Huntingtons Disease
Huntingtons Disease is caused by the genetically programmed degeneration of brain cells, called neurons. Symptoms of this include clumsiness, forgetfulness, mood swings, lack of coordination, depression, and involuntary twitching. It causes emotional disturbance, uncontrolled movements like the head, trunk and limbs, and loss of intellectual faculties. Also slowly d...
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Chemistry / J.N. Bronsted
In the simple formalism proposed independently by Bronsted and Lowry in 1923, an acid was defined as a proton donor and a base was defined as a proton acceptor. In the simple acid-base reaction shown below, H3O+ is termed a Bronsted Acid, and HO- a Bronsted Base. In writing organic reaction mechanisms, the flow of electrons is often shown using "curved arrows" and in the example shown, ...
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Chemistry / Just Plain Chemistry
1. Bond Angle- angle between the bonds connecting the atom in the molecule
2. Bond Energy- energy involved in forming or breaking a bond
3. Chemical Bond- strong attractive force between atoms or ions in a compound
4. Covalent Bond-nonionic chemical bond formed by shared electrons
5. Crystal Lattice- three-dimensional arrangement of cations and anions
6. Dipole- bond in which there...
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Chemistry / Learning Or Not
Learning Or Not
In our younger stages of life we tend to be taught the things needed for the future. Everything is made easy after the first time of learning it. I think that the author is trying to tell us that learning can be hard but altering what we had learned is even harder. I understand what the author is trying to say in the terms of learning is a hard thing, but to re-learn some...
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Chemistry / Marie Curie
"The year was 1919. Europe had been ravaged by World War I, and radium was far too expensive for a scientist of modest means to afford for experiments, even one as famous as Madame Marie Curie.
As a result, Madame Curie's ground-breaking research had reached a virtual standstill..."
For my biography, I chose Marie Curie. Marie Curie was born in 1867 in Warsaw, Poland as Manya Sklodowska...
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Chemistry / Marie Curie
Marie Curie
Marie Curie was born in Warsaw on November 7, 1867. She was actually born to the name Marja Sklodowska. When she was 24, she went to Paris where she changed her name to Marie and started school in Sorbonne. In 1893, she received her degree in physics. When she needed a lab to experiment in, a Professor Kovalski said that there might be space in the School of Physics and Che...
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Chemistry / Melvin Calvin
Melvin Calvin was born in St. Paul, Minnesota, April 8, 1911, of Russian emigrant parents. He received the B.S. degree in Chemistry in 1931 at the Michigan College of Mining and Technology, and the Ph.D. degree in Chemistry from the University of Minnesota in 1935. He spent the academic years 1935-1937 at the University of Manchester, England. He began his academic career at the Univers...
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Chemistry / Molar Volume Of A Gas
Introduction:
This lab was designed so that we, the students, could learn how to determine the molar volume of a gas effectively.
Method:
The first step that we took to accomplish our goal was to put on our safety goggles and choose a lab station to work at. We received one 400ml beaker, one polyethylene pipet, two test tubes with hole rubber stoppers, two small pieces of magnesium (M...
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Chemistry / Nuclear Reactions
CHEMICAL REACTIONS
Chemical reactions are the heart of chemistry. People have always known that they exist. The Ancient Greeks were the first 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 George Ernst Stahl was the first to postulate on chemical reaction....
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Chemistry / Rosalind Elsie Franklin
Who is Rosalind Franklin?
Born on July 25, 1920 in London, England, Rosalind Elise Franklin was a catalyst to many other scientists in the field of genetics. Using coal and carbon as subjects, Franklin discovered the double helix of DNA, the shape that two linear strands of DNA assume when bonded together. In 1945, Franklin received her Ph. D in physical chemistry from Cambridge Univer...
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Chemistry / Suicide
"Why do people commit suicide? People usually attempt suicide to block unbearable emotional pain, which is caused by a wide variety of problems. (rockhford.org).
More people die from suicide than from homicide in the United States. It is the ninth leading cause of death in the United States and the third leading cause of death among persons 15 to 24 years of age. Every day approximate...
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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...
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Chemistry / A Brief History Of Atomic Theory
In the beginning of the 1800s John Dalton, an English scientist did work some work on gases, which lead him to the creation of a complex system of symbols for all known elements at the time. He took all the information he had collected, along with the Laws of Conservation of Mass, Definite Composition and Multiple Proportions and updated Aristotle's theory of matter with the Atomic Theory of Matte...
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Chemistry / A Cosmetic Chemist
Introduction: Since Ancient civilizations women have been using cosmetics to better their appearances. Over the centuries they evolved into what they are today. You can look into a girls medicine cabinet from age three to one hundred and thirty-three and I can almost guarantee you that they own some kind of cosmetic. Whether the cosmetic is cover up, to cover a blemish or lipstick to enhance the...
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Chemistry / Acid Rain
Acid rain is formed when certain gases dissolve in rainwater to form acids. Acid rain by definition in the Chemistry book states: Rainwater that has become excessively acidic because of absorption of pollutant oxides, notably SO3, produced by human activities (1). There are airborne pollutants that cause acid precipitation for instance sulfur and nitrogen. By far the most common caus...
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Chemistry / Acid/Base Titration
Titration
of an
Acid with a Base
Jeff Barker
Chem. A-1
Wednesday, May 17, 2000
Introduction:
When you combine strong acids and bases, perfect ionization is achieved. This means that all that is left after the reactions are water and the spectator ion. The definition of an acid is "a substance that produces hydronium ions when dissolved in water." Acids have a pH range from 1-6. ...
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Chemistry / Aids
Factors of Parasitic Virulence
ABSTRACT
Why do some parasites kill the host they depend upon while
others coexist with their host? Two prime factors determine parasitic
virulence: the manner in which the parasite is transmitted, and the
evolutionary history of the parasite and its host. Parasites which
have colonized a new host species tend to be more virulent ...
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Chemistry / Alkali Metals
The six chemical elements that are known as alkali metals are lithium (Li), sodium
(Na), potassium (K), rubidium (Rb), cesium (Cs), and the extremely rare radioactive
substance called francium (Fr). Cesium and Francium are the most reactive elements in
this group. The word alkali comes from the Arabic word al-qili, meaning plant ashes.
Plant
ashes were the first source of alkali...
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Chemistry / Aluminum
(8 pages w/ double space size 12 Arial, not including Bib.)
Aluminum is one of a number of soft metals that scientists call "poor" metals. It can be shaped and twisted into any form. It can be rolled into thick plates for armored tanks or into thin foil for chewing gum wrappers. It may be drawn into a wire or made into cans. Aluminum is a generally popular metal because it does not rust...
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Chemistry / Ammonium Nitrate
Ammonium Nitrate
Ammonium Nitrate (AN), NH4NO3, has a molecular weight of 80.05. It does not occur in nature. This white crystalline solid was first described in 1659 by Gauber who called it Nitram flammens because it produced a yellow flame when burned due to traces of sodium in his samples. Today, AN is the most widely produced ammonium compound in the world. According to the International Fert...
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Chemistry / Anti-Matter
Anti-Matter
Introduction
Ordinary matter has negatively charged electrons circling a positively charged nuclei. Anti-matter however has positively charged electrons - positrons - orbiting a nuclei with a negative charge - anti-protons. Only anti-protons and positrons are able to be produced at this time, but scientists in Switzerland have begun a series of experiments which they believe will lea...
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Chemistry / Bignerds
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 ...
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Chemistry / Caffeine
12/04/99 Applied Chemistry Research-Caffeine Graham Cousins
Caffeine, a odorless slightly bitter substance that is in most caffeinated beverages.
Caffeine is present in about 4% of tea leaves and in coffee. Caffeine contains two other
alkaloids, theobromine and theophylline. These two relax the muscles while the caffeine
stimulates the heart and respi...
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Chemistry / Carbon Dioxide
Carbon is the basis for all life on earth. This essay will explain the role of carbon
dioxide in v arious parts of the carbon cycle. This essay will examin three main, and
important parts of the carbon cycle, starting by explaning the role of the ocean in
obsorbing cabon. Next this essay will examin the human influences on the carbon cycle
and human production of carbon dioxide. Thiedly this...
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Chemistry / Carbon Dioxide
The Greenhouse Effect
The greenhouse effect occurs when gases such as methane, carbon dioxide,
nitrogen oxide and CFCs trap heat in the atmosphere by acting as a pane of
glass in a car. ?The glass? lets the sun light in to make heat but when the
heat tries to get out the gases absorb the heat. Holding this heat in causes
heat waves, droughts and climate changes which could al...
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Chemistry / Chemical Reactions
Chemical 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, specific...
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