In the past benzene was obtained from the distillation of coal in the absence of air. Today most benzene is made syntheticallyfrom petroleum products. The benzene is a closed ring of six atoms connected by bonds that resonatebetween single and double bonds; each carbon is also bound to a single atom. Benzene isinsoluble in water but mixes in all proportions with organic . Benzene is itself an excellentsolvent for certain and for most simple organic chemicals. It is one of the most commonly
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****Atoms Think and Compare: Page 331 Q-3 Consider these atoms: hydrogen H‚ aluminum Al‚ argon‚ Ar. Rank them‚ from smallest to largest‚ in order of (a) size; (b) number of protons in the nucleus; (c) number of electrons. In order of size from smallest to largest: Hydrogen H‚ Argon Ar‚ Aluminum Al. In order of proton from smallest to largest: Hydrogen H‚ Aluminum Al‚ Argon Ar. In order of electron from smallest to largest: Hydrogen H‚ Aluminum Al‚ Argon Ar. Q-4 Consider these atoms: helium
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Atom History Essay An Atom is a basic unit of matter that consists of a dense‚ central nucleus surrounded by a cloud of negatively charged electrons. The Atom was theorized by a man named Democritus of Abdera‚ Thrace in between c.a 460 BC - ca. 370 B.C. Atom is derived from the Greek word “atomos” ‚ which means to be uncuttable. He had a theory that everything is composed of “atoms”‚ which he believed that these minuscule objects are indivisible‚ indestructible and have and always been in motion
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1930’s Worker motivation affects productivity Elton Mayo Hawthorne Studies Studies social interactions and their effect on productivity Operations Research ---- post WWII to 1970’s Quantitative methods applied to optimize business decisions BIT Tools George Dantzig – 1947 Father of Linear Programming Decline of U.S. Manufacturing --- 1970’s to 1980’s From Industrial Revolution through 1960’s‚ the US led world
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Structure of the Atom A) Matter 1. Matter 2 3 Element Compound 4. Atom 5. Molecule 6. Ion 7. Diffusion Is anything that occupies space and has mass. Is made up of tiny and discrete particles. There are spaces between these particles. These particles may be atoms‚ molecules or ions. Matter exists in three states solid‚ liquid and gas Is a substance that consists of only one type of atom Is a substance that contains two or more elements that are chemically bonded together Molecule‚ Ion An atom is the smallest
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CHEMISTRY UNIT 2 STRUCTURE OF ATOM The rich diversity of chemical behaviour of different elements can be traced to the differences in the internal structure of atoms of these elements. After studying this unit you will be able to • know about the discovery of electron‚ proton and neutron and their characteristics; • describe Thomson‚ Rutherford and Bohr atomic models; • understand the important features of the quantum mechanical model of atom; • understand nature
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pADVENTURES of an Atom By: Nicole Zemaitis Atom-Smallest particle of an element that retains the properties of the element. Scientific discovery is how the present day Atomic Theory was made up. The current atomic theory was formed by different scientists over many years‚ each scientist building on or proving theories wrong. Democritus 460-370 B.C. Narrative: Hello! My name is Anna the Atom. I’m writing to you to describe
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Introduction An atom is the smallest part of an element that can take part in a chemical change. The word “atom” comes from the Greek “atomos”‚ which means “unable to be cut”. Atomism is the philosophy of the existence of atoms. The first theories of atoms come from India. There was a Hindu sage named Kanad that hypothesized that all mater was composed of earth‚ water‚ light‚ wind‚ ether‚ time‚ space‚ mind and soul. Then another philosopher named Pakuda Katyayana suggested that everything can be
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Netflix 1. How strong are the competitive forces in the movie rental marketplace? Do a five-force analysis to support your answer. At the moment a lot of people are downloading and watching movies online. Some of them it’s free no monthly payments required. There are also pirating movies online for free and other free sources are available. It is available through online piracy to get the same movies which are offering Netflix. Five -force analysis: Threat of substitutes: Probably other
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Corporate Strategic Tasks Arnoldo C. Hax The Central Issue for Top Management How to Add Value at the Corporate Level 1. Environmental scan at the corporate level: Assessing the external forces impacting the firm. The mission of the firm: Choosing competitive domains and the way to compete. Business segmentation: Selecting planning and organizational focuses. Horizontal strategy: Pursuing synergistic linkages across business units. 2. 3. 4. The Central Issue for Top Management (cont’d
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