PbCl2(s) + 2 K+ + 2 NO3- 2. Solutions of sodium sulfate and calcium bromide are mixed. Na2SO4(aq) + CaBr2(aq) CaSO4(s) + 2 NaBr(aq) 2 Na+ + SO42- + Ca2+ + 2 Br- CaSO4(s) + 2 Na+ + 2 Br- 3. Solutions of aluminum acetate and lithium hydroxide are mixed. Al(C2H3O2)3(aq) + 3 LiOH(aq) Al(OH)3(s) + 3 LiC2H3O2(aq) Al3+ + 3 C2H3O2- + 3 Li+ + 3 OH- Al(OH)3(s) + 3 Li+ + 3 C2H3O2- 4. Solutions of iron(III) sulfate and sodium sulfide are mixed
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Name: Ana Cecilia Alcalá Bolio Registration: 2693441 Course title: Chemistry II Teacher’s name: Hugo Skyol Pliego Cortes Module: 1. Hydrocarbons in life. Activity: Homework 3 Date: January 30‚ 2013 Team: Doesn’t apply. Bibliography: Universidad TecMilenio. BlackBoard. Topic 3. http://bbsistema.tecmilenio.edu.mx/webapps/portal/frameset.jsp?tab_tab_group_id=_2_1&url=%2Fwebapps%2Fblackboard%2Fexecute%2Flauncher%3Ftype%3DCourse%26id%3D_109276_1%26url%3D Wikipedia.org. “Ethane” (2012)
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needed to perform this experiment. I will need three round flower pots 1 inch in diameter and height. I will be using ¼ cup of ammonium sulphate fertilizer and ½ cup of sodium chloride concentrations salt‚ rock salt (halite)‚ and calcium magnesium acetate salt (Peeples‚ 1990). The last and final ingredient I will need is three different types of grass sod‚ St. Augustine grass‚ Bahia grass‚ and Buffalo grass cut in 5 inches in a square diameter. All three flower pots will be deep freezes to duplicate
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SIBULO‚ MONIQUE STACY JANE B. 2012-1-1433 17 SEPTEMBER 2013 1. The function of a neuron is to convey or process signals. Discuss how the specific parts of a neuron allow this general function to occur. Neurons has four distinct zones that has each of their specialization in the transmission of signals across the body. The first zone is for signal reception‚ it consists the dendrites and the cell body. The dendrites receive the signals and be converted into electrical signals that will be
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flame-retardant cotton. Then the cotton itself was painted. It was painted with cellulose acetate butyrate and aluminum powder‚ both of which can be combustible alone. Aluminum powder can be explosive or flammable if mixed with air‚ it is used in liquid and solid rocket fuels‚ and used in thermite‚ which is an incendiary. It also burns and orange-red depending on other elements being present at point of ignition. The cellulose acetate butyrate is combustible and used in everyday items such as hairbrushes. Thought
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HISTORY OF TEXTILE No one knows exact beginning of spinning and weaving of textiles. However‚ it is thought that weaving originated earlier than spinning. Primitive people may have observed the interlaced grass and twigs in the nests of birds or they have seen rushes naturally interlacing as they grew and discovered formation of cloth‚ baskets‚ nets and huts etc. Spinning developed later when people may have thought to improve raw material. People started to use fibers found in nature and hand
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(Lippia graveolens) an essential oil of very similar constitution is found. A typical analysis is as follows: 50% thymol‚ 12% carvacrol‚ 9% p-cymene and a number of further monoterpenoids (1‚8 cineol‚ gamma-terpinene‚ terpinene-4-ol and terpinene-4-yl acetate) in amounts between 1 and 5%. Flowering Oregano. This Italian cultivar has an exceptionally intensive flavor. Origin: Several species of genus Origanum are native to the Mediterranean‚ all of which are traded as a spice. The influence of climate
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------------------------------------------------- Liquid–liquid extraction From Wikipedia‚ the free encyclopedia Liquid–liquid extraction also known as solvent extraction and partitioning‚ is a method to separate compounds based on their relative solubilities in two different immiscible liquids‚ usually water and an organic solvent. It is an extraction of a substance from one liquid into another liquid phase. Liquid–liquid extraction is a basic technique in chemical laboratories‚ where it is performed
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S OUTHEAST ASIAN J T ROP MED P UBLIC H EALTH ANTI-HEAD LICE EFFECT OF ANNONA SQUAMOSA SEEDS Junya Intaranongpai 1‚ Warinthorn Chavasiri 2 and Wandee Gritsanapan 1 1 Department of Pharmacognosy‚ Faculty of Pharmacy‚ Mahidol University‚ Bangkok; Department of Chemistry‚ Faculty of Science‚ Chulalongkorn University‚ Bangkok‚ Thailand 2 Abstract. The present study focused on the separation and identification of the active compounds against head lice from the hexane extract of Annona squamosa
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the victims’ bodies. These fibers were yellowish-green nylon and violet acetate. A criminalist must obtain a physical match of nonexistence‚ and the examiner must resort to a side-by-side comparison of standard or reference and crime scene fiber. (Saferstein‚ 2015) The most important step in the examination of fiber is a microscopic comparison of color and diameter using a microscope. The yellowish-green nylon and violet acetate fibers were generally similar to each other in appearance and properties
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