milk was placed in a beaker and was diluted with 50 ml tap water. I. Physical properties of milk * The color was noted. Specific Gravity (denser or less dense than water and pH. II. Chemical properties of milk 1.) Action of hot alkali 1 ml of milk was placed in a test tube. NaOH was added drop by drop until yellow color develops that gradually deepens into a brown color. 2.) Saturation with MgSO4 1 ml of milk was placed in a test tube. Solid MgSO4 was added until precipitate
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Claro M. Recto Information and Communication Technology High School Doña Aurora St.‚ Claro M. Recto‚ Angeles City Telephone #(045) 887 5502 E-mail Add: cmricthsangelescity@yahoo.com Website: www.cmricthsangeles.tk Name: Year and Section: Topic: Objectives: 1. Trace the development of the Modern Periodic Table of Elements; 2. Describe the contributions of early scientists in the development of the Periodic Table of Elements; and 3. Analyze the basis of
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Chapter 1 THE PROBLEM AND ITS BACKGROUND Introduction The conversion of solid waste (waste glass) and fibers (bamboo fibers) into construction materials and its capability to fight against chemical weathering will be discussed in this study. Now a day‚ it is an exciting and innovative technology in the field of engineering. There are many studies had been formulated by researchers on how to minimize or be free in concrete deterioration in an economical way and some are using high-cost materials
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Product information 1. the name of all star come from full name：ALL STAR CHUCK TAYLOR Converse 1917 the world’s first dual-ALL STAR canvas shoes in production‚ and the beginning of the twentieth century is known as "basketball ambassador‚" said U.S. basketball star CHUCK TAYLOR (Chuck Taylor) on this new line of canvas shoes‚ put it down‚ convinced thatALL STAR shoes make basketball players on the court dash and enjoy the play‚ so he wherever he always has a pair of ALL STAR canvas shoes‚ enthusiastically
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called a family or group also leaving spaces for unknown elements at the time and predicting their atomic weight. (Scientific American) From side to side is the rows. Every row starting from the left and moving to the right‚ in order‚ include Alkali‚ Alkali Earth‚Transition‚ Metalloids‚ Halogens and Noble Gases. In other words‚ the table from left to right goes from most reactive to least
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(1986). The periodic table of the elements. Oxford: Oxford Science. Rhee‚ S.‚ & Goldstein‚ M. H. (2009). Acid and Alkali Burns. In M. Yanoff‚ & J. S. Duker‚ Ophthalmology (pp. 348-350). Mosby Elsevier. Shaha‚ A. (2008). Why is science important? Retrieved November 28‚ 2012‚ from Why Science?: www.whyscience.co.uk United Nations Economic Commision for Europe Walker‚ D. (2007). Acids and Alkalis. London: Evans Brothers Ltd.
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when treating cooling tower blowdown‚ produced water from steam assisted gravity drainage (SAGD)‚ produced water from natural gas extraction such as coal seam gas‚ frac flowback water‚ acid mine or acid rock drainage‚ reverse osmosis reject‚ chlor-alkali wastewater‚ pulp and paper mill effluent‚ and waste streams from food and beverage processing. Brine treatment technologies may include: membrane filtration processes‚ such as reverse osmosis; ion exchange processes such as electrodialysis or weak
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Lattice Energy essentially is a measure of how well the ions pack into a crystal – affected by ion charge‚ size and distribution. --This is followed by hydration‚ or solvation of the ions with water: alkali earth cations will be added to a variety of anions. By choosing large anions and alkali earth cations‚ the lattice energy of the potential precipitated salts will be relatively low (A). [Why are Lattice Energies low with large anions?] Additionally‚ anions have low heats of hydration. The formation
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1. (a) I‚ III‚ and IV are correct. II is not correct. To explain III‚ de Broglie’s equation states l = h/(mv)‚ so nl = nh/(mv) = 2pi(r). Where: l = wavelength‚ v = velocity of electron‚ n = some positive integer‚ r = distance of electron from center‚ m = mass of electron. Solve‚ get mvr = L = nh/2pi. (b) The current wave mechanical model for the atom states that there are an integer number of wavelengths in every standing integer number (n). 2. (a) The first shell electrons in Lithium are
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16. Pure nitrogen combines directly with an active metal to form a - Nitride 17. In a sample of solid Al(NO3)3‚ the ratio of aluminum ions to nitrate ions is - 1:3 18. In a sample of solid calcium phosphate Ca3(PO4)2‚ the ratio of calcium ions to phosphate ions is - 3:2 19. What is the total number of atoms in (NH4)2SO4? - 15 20. What is the total number of oxygen atoms present in one unit of Mg(ClO3)2? - 6 21. What is the total number of atoms of oxygen in the formula Al(ClO3)3.6H2O?
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