The Atomic Cafe The Atomic Cafe is a 1982 documentary film compiled of clips from government propaganda, training films, news stories, advertisements and other media from the 1940’s through the 1950’s. Many films were prepared by the U.S. government either for the military or for its citizens to view. The form of Atomic Cafe was unique for documentaries. It was produced entirely of different film sources edited together, without narration. The film made its points solely through the selection and order of the clips included in the documentary. The purpose of the film was to show the American people of the 1980’s exactly how the government distributed propaganda and deceived the American citizens of the 1950’s.
Copper in Silver Nitrate Lab: Making Silver Sabrina Kate S. Carranza – Chemistry Hour 6 I. Purpose: The purpose of this experiment is to distinguish the relationships between reactants and products, in addition to expanding on concepts such as single displacement reactions, mole ratio values, moles to mass, theoretical yields, limiting reactants, excess, stoichiometric relationships and percentage errors.
Classifying Chemical Reactions Purpose: The purpose of this experiment is to observe a variety of chemical reactions and to identify patterns in the conversion of reactants into products.
Solvolysis of t-Butyl Bromide: The Effect of Solvent Polarity on Reaction Rates Katherine Lee Georgetown University Introduction The solvolysis of t-butyl bromide is an SN1 reaction, or a first order nucleophilic substitution reaction. An SN1 reaction involves a nucleophilic attack on an electrophilic substrate. The reaction is SN1 because there is steric obstruction on the electrophile, bromine is a good leaving group due to its large size and low electronegativity, a stable tertiary carbocation is formed, and a weak nucleophile is formed. Since a strong acid, HBr, is formed as a byproduct of this reaction, SN1 dominates over E1. The first step in an SN1 reaction is the formation of a highly reactive carbocation, in which a leaving group is ejected. The ionization to form a carbocation is the rate limiting step of an SN1 reaction, as it is highly endothermic and has a large activation energy. The subsequent nucleophilic attack by solvent and deprotonation is fast and does not contribute to the rate law for the reaction. The Hammond Postulate predicts that the transition state for any process is most similar to the higher energy species, and is more affected by changes to the free energy of the higher energy species. Thus, the reaction rate for the solvolysis of t-butyl bromide is unimolecular and entirely dependent on the initial concentration of t-butyl bromide.
In “Chemistry: Green and Clean, the author builds an argument that Chemists are finding ways to save energy, cut waste and boost safety. Author Jennifer Weeks uses Green chemists working to identify chemical products and processes that are wasteful, Green chemists working to swap out harmful ingredients for safer alternatives, Green chemists working to modify processes to use less energy and cut waste to strengthen the logic and persuasiveness of her argument.
On July 16, 1945 a new age was beginning. The "atomic age", also known as the "atomic era" is the period in history that follows the detonation of the first atomic bomb. It is December 7, 1941 and a new chapter in the history of the United States is about to start. The sky is crowed by Japanese fighter planes, bomb and bullets rain all over the American naval base at Pearl Harbor resulting in considerable human and material losses. The American territory has already fell under the attack that would lead America to join World War II. Led for almost four years of confrontation as well as death and the need to eradicate the Japanese army and therefore, end the devastating world war, the United states build the most powerful weapon the world had
Results: The major component of the Grignard reaction was prepared by reacting 4-Bromo-N, N-dimethylaniline with magnesium turnings using THF as a solvent in an anhydrous condition as shown in equation 1.
In the article “Chemistry: Green and Clean.”, the author provides examples of harmful chemicals and their negative effect on nature. The author continues the article with solutions to the problems that are more natural and reasonable. Weeks talks about how one can adjust a process in order to use less energy and cut waste; chemist are identifying products or systems that have negative side effects such as pollution; and to use more natural and safer ingredients instead of toxic or wasteful ones. Jennifer weeks supports her claim with the use of factual evidence, reasoning and stylistic elements.
Once upon a time, the atoms which make up everything, including our bodies, were formed in the stars. Most of those stars are dead now but they left us the most important legacy – atoms. Atoms are small particles which make up everything. From the chair you're sitting on, to
History of the Atom By Karina Vazquez Period: 4 May 11, 2016 Mr.Sanchez Chemistry B The atom is an important thing in the world of science and chemistry. The atom might have started on a different point of view on how the atom works. There were many different people who had many good and different ideas on how to use the atom and what it was used for. Democritus was one of many other philosopher and scientists that wanted to start the discovery of the atom. He got the name atom from a Greek word, atomos which means that everything is uncut table. The atom was discovered by Ernest Rutherford while he was doing an experiment in 1911-1919. Ernest Rutherford suggested at first that the atoms orbited around atomic the nucleus, just like the planets. Atoms are basic units of matter that are made of protons, neutrons, and electrons. Protons and neutrons are particles that are found in the center of the atom, and the electrons are particles that are found in shells that orbit around the nucleus of the atom. The nucleus was discovered in 1911, by Ernest Rutherford and it is known for holding the protons and neutrons, and it 's also in the middle of the proton. Atoms have many other things that are special and important to use, but one of the most useful thing is the Periodic Table, a table of the chemical elements arranged in order of the atomic order. The most important things for the history of the atom are the basic units of matter which make the atom
The concepts that are focused upon in these two lesson plans include the idea and ability to apply mathematical and symbolic models that can relate to the ideal product formation from a given set of reactant masses and chemical reaction classification. The other concept is that reactions occurring in our world always includes errors, which affect the amount of product we receive from a reaction. Mathematical “Yields” allow us to calculate the relationships and differences between the ideal calculated products and the masses we obtain from experiments.
Japan, because it is an island nation, possesses few natural resources and even fewer sources of fuel and energy (Nuclear Power in Japan, April 2015). As a result, Japan depends on nuclear power to sustain electricity for the 127.3 million people living there (Japan Population, 2015). Nuclear power
An Atom is the the basic building block of all matter. Atoms are made up of Particles, called: Protons, neutrons and Electrons. Protons carry a positive charge, the neutron carry 's a neutral charge and the electron carry’s a negative charge. The Atom has two main parts the Nucleus and the Electron Shell. The Nucleus contains the Protons and Neutrons. The electron Shell Contains the The electrons.
Chemicals are used in a wide variety of products and play an important role in the world economy. They are constituents of materials, are used in preparations and products and are embedded in complex physical systems. While chemicals are a significant contributor to national economies, sound chemical management across the life cycle - from extraction to disposal - is essential to avoid significant risks to human health and the environment, along with their associated economic costs, and to maximize benefits for human well-being. Growth in chemical production and use has slowed in many of the
Nuclear technology: a mysterious frontier in scientific advancement that has enraptured spectators worldwide. As the influence of nuclear technology expanded, nations implemented policies to address its usage. The Atoms for Peace program contributed significantly to the conception of these policies. This program’s inception represented a turning point in international cooperation. From Atoms for Peace arose the International Atomic Energy Agency (IAEA), the spread of nuclear energy, the technology’s risky dual use, and the rise of conflicts over Iran’s highly controversial nuclear program. The effects of the Atoms for Peace program play roles even in international affairs of the present.