Chapters 11 12 Periodic Table Name __________________ ( ) Class __________ Date _________ History of the Periodic Table Russian chemist Dmitri Ivanovich Mendeleev 1834-1907 Arranged elements in order of increasing atomic masses Elements with similar chemical properties fall into the same vertical column Such an arrangement is the Periodic Table The Periodic Table The Periodic Table is a list of elements arranged in order of ______________ _____________ (__________) ____________. Groups
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THE EVOLUTION OF SOAP & DETERGENT INDUSTRY HISTORY Soaps The washing industry‚ usually known as the soap industry‚ has roots over 2000 years in the past‚ a soap factory having been found in the Pompeii excavations. However‚ among the many chemical process industries‚ none has experienced such a fundamental change in chemical raw materials as have the washing industries. It has been generally accepted that the per capita use of toilet soap is a reliable guide to he standard of living for
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(although the term "lye soap" refers almost exclusively to soaps made with sodium hydroxide) brings about a chemical reaction known as saponification. In saponification‚ the fats are first hydrolyzed into free fatty acids‚ which then combine with the alkali to form crude soap. Glycerol (glycerine) is liberated and is either left in or washed out and recovered as a useful byproduct‚ depending on the process employed.[2] Soaps are key components of most lubricating greases‚ which are usually emulsions
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Chemistry Equipment Symbols 1. Test Tube 2. Boiling Tube 3. Beaker 4. Conical Flask 5. Test Tube Holder/ Tongs /Clamp Stand 6. Measuring/Graduating 7. Funnel 8. Pipette Cylinder 9. Spatula 10. Tripod 11. Bunsen Burner 12. Glass Bulb 13. Burette 16. Condenser Pipette Changes of State Filtering Solutions 03-Nov
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What is an Effluent? Effluent is an out flowing of water or gas from a natural body or a man made structure. Effluent is defined by the United States Environmental Protection Agency as “wastewater - treated or untreated - that flows out of a treatment plant‚ sewer‚ or industrial outfall. Generally refers to wastes discharged into surface waters”. The Compact Oxford English Dictionary defines effluent as “liquid waste or sewage discharged into a river or the sea”. Sources of Industrial Effluents
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Properties of Gallium Gallium is a chemical element that is located in Group 13 or the “Boron Group” on the periodic table of the elements. It has the chemical symbol Ga and has an atomic number of 31 meaning it has 31 protons and 31 electrons. The atomic mass of Gallium is 69 meaning it has 38 neutrons. Gallium is a transition metal and was discovered in 1875 by French Chemist Paul Emile Lecoq de Boisbaudran after the element was predicted by Dmitri Mendeleev who created the periodic table of the
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Chemistry All about matter There are three different stages of matter: Solid‚ Liquid and Gas Solid (s): Have a certain volume and shape. “Particles” are arranged in a specific crystalline patter and they only vibrate around fixed positions. Liquid (l): Have a fixed volume‚ but not shape. The particles have some freedom and can move around each other. They collide often. Gas (g): Doesn’t have a fix volume or shape. (Takes up the space where it is) Particles move freely in all space available
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Geopolymer From Wikipedia‚ the free encyclopedia Jump to: navigation‚ search Geopolymers are new materials for fire- and heat-resistant coatings and adhesives‚ medicinal applications‚ high-temperature ceramics‚ new binders for fire-resistant fiber composites‚ toxic and radioactive waste encapsulation and new cements for concrete. The properties and uses of geopolymers are being explored in many scientific and industrial disciplines: modern inorganic chemistry‚ physical chemistry‚ colloid chemistry
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neon ← sodium → magnesium Sodium in the periodic table Appearance silvery white metallic Spectral lines of sodium General properties Name‚ symbol‚number sodium‚ Na‚ 11 Pronunciation /ˈsoʊdiəm/ soh-dee-əm Element category alkali metal Group‚ period‚block 1 (alkali metals)‚ 3‚ s Standard atomic weight 22.98976928(2) Electron configuration [Ne] 3s1 2‚8‚1 History Discovery Humphry Davy (1807) First isolation Humphry Davy (1807) Physical properties Phase solid Density (near r
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Name: Elizabeth Hackathorn Date: April 14‚ 2013 Instructor’s Name: Kristina Jantz Assignment: SCI103 Phase 1 Lab Report Title: Measuring pH Levels Instructions: Enter the Virtual Lab‚ and conduct the experiments provided before going out into the filed for additional research. Please type your answers. When your lab report is complete‚ submit it to the Submitted Assignments area of the Virtual Classroom. Part I: Answer the following questions while in the Phase 1 lab environment
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