40 Common Minerals and Their Uses Aluminum The most abundant metal element in Earth’s crust. Aluminum originates as an oxide called alumina. Bauxite ore is the main source of aluminum and must be imported from Jamaica‚ Guinea‚ Brazil‚ Guyana‚ etc. Used in transportation (automobiles)‚ packaging‚ building/construction‚ electrical‚ machinery and other uses. The U.S. was 100 percent import reliant for its aluminum in 2012. Barium A heavy metal contained in barite. Used as a heavy additive in oil
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sodium hydroxide à copper(II) hydroxide + sodium nitrate Cu(No3)2 + 2NaOH à Cu(OH)2 + 2NaNO3 Double Replacement -A solid seems to form 6 Copper(II) hydroxide à copper(II) oxide + water Cu(OH)2 à CuO + H2O Decomposition -The liquid turns black 10 Copper(II) oxide + hydrochloric acid à copper(II) chloride + water CuO + 2 HCl à CuCl2 + H2O Double Replacement -The liquid clears up and turns blue 11 Copper(II) chloride + aluminum à copper
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BALANCE EACH EQUATION BEFORE SOLVING ANY PROBLEMS. SHOW ALL WORK. 1. ___Cu + ___O2 ___CuO a. If 101 grams of copper is used‚ how many moles of copper (II) oxide will be formed? b. If 5.25 moles of copper are used‚ how many moles of oxygen must also be used? c. If 78.2 grams of oxygen react with copper‚ how many moles of copper (II) oxide will be produced? 2. ___C4H10 + ___O2 ___CO2 + ___H2O a. How many moles of butane‚ C4H10‚ are needed to react with 5.5 moles of oxygen? b. How many
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used for coal egg production‚ all kinds of powder metallurgy cold pressed pellet production. Usually the powdery material‚ must press the ball is the need briquette machine to complete. Such as: coal‚ coke powder or black non-ferrous metal ore‚ iron oxides and dust‚ sludge‚ refractory material‚ etc. And today we mainly say something about coal ash briquetting machine. coke powder briquetting machine is a powder material is compressed into the ball equipment. Coal ash briquetting machine is widely
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used to reduce these. 1. Extraction costs:-Affected by depth‚ overburden quality‚ drainage problems‚ size of deposit. 2. Processing costs :-The cost of extracting a metal depends upon the other elements with which it is combined.eg aluminium is most abundant in clay but can only be economically extracted from bauxite 3. Purity 4. The financial cost‚ energy required and quantity of ore-bearing rock extracted all increase rapidly as ore purity decreases. 5. Land conflicts:-Competing
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oxygen: Burns brightly when heated in air to form a white powder of ionic magnesium oxide Mg2+O2- when heated strongly in air. 2Mg(s) + O2(g) ==> 2MgO(s) Reaction of oxide with water: It is slightly soluble in water‚ and is a basic oxide forming an alkaline solution of magnesium hydroxide Mg2+(OH-)2‚ of about pH12. MgO(s) + H2O(l) ==> Mg(OH)2(aq) Reaction of oxide with acids: Behaves as a basic oxide dissolving to form the chloride‚ sulphate and nitrate salt in the relevant dilute acid
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Lab 2 Tensile Test Abstract The aim behind this experiment was to put Mild steel‚ copper and aluminium through a tensile test‚ with Mild steel being tabulated and graphed to show its properties and how they could be used in the real world. Introduction/Theory Tensile testing is one of the most simple and widely used materiel tests available. It is used to characterize the mechanical properties of the material and has direct implications on the design and construction of the end product. This test
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Mini-Report: How Do Scientists Report Data? “Determination of the Empirical Formula of an Unknown Lead Oxide” By: Dr. C. Steven Joiner In this paper‚ they walk through and explain the process known as smelting. The experiment demonstrates the historical process known as smelting and could theoretically be used to determine the empirical formula of other metal oxides found in nature. This paper explains how the process of smelting and how metals can be extracted from their ores. This is because
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reaction produced very bright light (which may cause blindness) and some sparks (exothermic reaction took place)‚ which signified that the reaction between magnesium solid and carbon dioxide gas had been proceeding. The end result is solid magnesium oxide in the form of “white ball” and carbon solid in the form of coal. These products indicated that the coupling of the first two reactions was spontaneous with the theoretical value of ∆G= -372.2 kJ/mol. -------------------------------------------------
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PHARMACEUTICAL CHEMISTRY Chapter 5 – Gastrointestinal Agents • Inorganic agents used to treat gastrointestinal disorders includes: 1. Products for altering gastric pH 2. Protectives for intestinal inflammation 3. Adsorbents for intestinal toxins 4. Cathartics of laxatives for constipation ANTACIDS o neutralize excess hydrochloric acid o inactivate the proteolytic enzyme‚ pepsin o alkaline bases Results of Hyperacidity: o Gastritis – inflammation of the gastric mucosa o Peptic ulcer
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