sulfuric acid cyclohexene was obtained from cyclohexanol. And the product was obtained from the simple distillation and later it was reacted with bromine and potassium permanganate. The observations and results were all recorded. Simple distillation was used for distillation technique‚ and the distillate was seperated into test tubes‚ and to the one of them‚ bromine was added‚ and to the another potassium permanganate was added. Permanganate’s color changed from purple to brown‚ and bromium’s color changed
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SCH 4U1 FINAL EXAM REVIEW ATOMIC STRUCTURE AND MOLECULAR ARCHITECTURE 1. Describe the wave mechanical model of the atom. 2. Write the ground state electron configuration for Br. 3. Explain why the first ionization energy for Ne is significantly greater than Na. 4. Distinguish between ionization energy and electronegativity. 5. How does VSEPR Theory account for the fact that the bond angle in H2O is less than NH3? 6. Which of the following molecules are polar? Include diagrams
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Important Note: This sample essay mainly illustrates the structure of your assignment on ethical issues of a company selected by you. You may first identify two or three ethical problems and then discuss how to solve them. Remember including relevant citations to support your evidences and viewpoints. Ethical issues in iPhone 1． Introduction ． With an elegant combination of a mobile phone‚ iPod and personal digital assistant (PDA)‚ iPhone was launched at Apple and AT&T stores across the US on
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The upper layer of the atmosphere surrounded by ozone (15 to 30 Kms) is known as ozonosphere. Ozone layer is a protective stratospheric layer‚ also known as ozone umbrella. Ozone concentration differs by about 10 ppm in stratosphere compared to 0.05 ppm in troposphere. It acts as a protective shield for the man‚ animals and plants by filtering out the lethal ultraviolet rays from reaching the earth’s surface. If the ozone layer is not there‚ the harmful ultraviolet rays will reach to the
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Complete Table 1 below to indicate the effect of the bulb in Figure 2‚ when graphite rod is replaced by EACH of the substances in Table 1. TABLE 1 : EFFECT ON BULB Substance Effect on bulb Lead Solid lead bromide Molten lead bromide Liquid bromine b)Classify EACH of the substances in
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Elemental Analysis 1Professor‚ School of Chemical Engineering‚ Chemistry and Biotechnology‚ Mapua Institute of Technology; 2Student‚ CHM146L-B31‚ School of Chemical Engineering‚ Chemistry and Biotechnology‚ Mapua Institute of Technology [pic] ABSTRACT Elemental analysis of organic compounds determine the elements present in them but they do not give the actual structure or the functional groups present. Since all organic compounds contain hydrogen and carbon‚ most tests consist of only the
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CHAPTER 5: PERIODIC TABLE Development of the Periodic Table • i) Substance exist: naturally in elemental form Example: Gold‚ Uranium as unstable compound Example: Radioactive compounds as stable compound (majority) How to know whether a substance is a compound OR an element? ii) iii) • • • Grouping system: 1800: 31 elements identified 1865: 63 elements identified Audi Majdan – DMC 101 – KLIUC 1 • Dmitri Mendeleev: i) ii) iii) iv) Develop a system to group
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continue to burn‚ releasing dense‚ black clouds of smoke‚ The chlorine combines with hydrogen of the paraffin‚ forming hydrogen chloride‚ and uncombined carbon is left in the form of soot. Soot is black residue from fuel. Chlorine replaces iodine and bromine from their salts. Dry chlorine is somewhat inert or not able to move‚ but moist chlorine unites directly with most of the elements. History Chlorine was discovered in 1774 by Karl Scheele. Humphry Davy proved that chlorine was an element. Extensive
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Bruce Munro’s Light Installations Bruce Munro is a British installation artist. Installation art is three-dimensional and is mostly site-specific. They are intended to change space perception. Bruce Munro has taken installation art to new heights. He does large-scale installations that usually encompass entire parks to create entire exhibitions. His primary medium is light. He uses light to completely transform an area. His exhibitions are very unique. Typically in an exhibition‚ one
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Hydrogen is recognized as the simplest and lightest chemical element in the periodic table; even though it is identified as one of the top elements in abundance in the world (consisting of 0.9 percent of the total mass on earth)‚ it is considered to be the most abundant element in the entire universe. It is a gaseous element with the atomic symbol being H. It is usually categorized under the first group of the periodic table known as the alkali metals. It contains only one electron that revolves
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