Carbonates react with strong acids to give off carbon dioxide and water. Marble is calcium carbonate and thus behaves in the same way: CaCO3 (s) + 2HCL (aq)  CaCL2 (aq) + H2O (l) +CO2 (g) In this experiment‚ I am going to see if temperature affects the reaction rate between marble chips and hydrochloric acid by timing the release of carbon dioxide in the reaction. I predict the higher the temperature‚ the faster the reaction rate. This is due to the kinetic theory. The more heat
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SPE 167543 Wellbore Stability Management In Depleted And Low Pressure Reservoirs Fekete Paul O.‚ Dosunmu Adewale‚ Anthony Kuerunwa‚ Ekeinde Evelyn B.‚ Anyanwu Chimaroke‚ and Odagme Baridor S.‚ Dept. of Petroleum and Gas Engineering‚ University of Port Harcourt‚ Nigeria Copyright 2013‚ Society of Petroleum Engineers This paper was prepared for presentation at the Nigeria Annual International Conference and Exhibition held in Lagos‚ Nigeria‚ 30 July–1 August 2013. This paper was selected for presentation
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Phosphoproteins of the chicken eggshell calcified layer The chicken eggshell matrix is a complex mixture of proteins and proteoglycans. It also contains phosphoproteins that are thought to affect mineralization of the matrix. Several of the matrix phosphoproteins‚ such as the major component osteopontin‚ have already been identified as phosphoproteins in other tissues‚ but the phosphorylation status of the eggshell matrix forms was unknown. The phosphopeptides‚ obtained after cleavage of the matrix
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investigating the reaction between marble chips and hydrochloric acid‚ and to see what differences in the rate of this reaction arise when different concentrations of acid are used. Below is the word equation for this reaction: Calcium Carbonate + Hydrochloric Acid = Calcium Chloride + Carbon Dioxide + Water Below is the fully balanced chemical equation for this reaction. CaCo3 + HCl  CaCl2 + CO2 + H2O Aim The aim of this investigation is to find out whether the concentration
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w w ap eP m e tr .X w om .c s er June 2003 INTERNATIONAL GCSE MARKING SCHEME MAXIMUM MARK: 40 SYLLABUS/COMPONENT: 0620/01 CHEMISTRY (Multiple Choice) Page 1 Mark Scheme IGCSE EXAMINATIONS – June 2003 Syllabus 0620 Question Number Key Question Number Key 1 2 3 4 5 C B A D A 21 22 23 24 25 B D A B D 6 7 8 9 10 C A A B C 26 27 28 29 30 B D D D B 11 12 13 14 15 B D C D
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non-explosive materials with hardness less than 7 and humidity less than 6% in mining‚ construction‚ chemical industry‚ etc. Raymond Mill (Grinding Mill) is ideal grinding machine to grind and process the materials such as limestone‚ gypsum‚ barite‚ carbonate calcium‚ marble‚ feldspar‚ dolomite‚ granite‚ kaolin‚ bentonite‚ bauxite‚ etc. Features of Raymond Mill (Grinding Mill): 1. The whole plant is vertical structure of strong systematic characteristic‚ so it occupies small area. From crushing of raw
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Analysis of an Antacid In this lab report we will discuss the results of the ‘Determining the Most Effective Antacids’ lab. In this lab we tested different brands of antacids to find out which will be the most effective at neutralizing acids. We will test this by seeing how much drops of hydrochloric acid (HCl) are required to neutralize a certain amount of the antacid. Antacids are used to resist heartburn. We sometimes use them to treat this because antacids are a mild base that can neutralize
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POWDERED MARBLE AS ALTERNATIVE TO COMMERCIAL CERAMIC TILES Class Project in English 104 (Technical Writing) Abstract This study determined whether powdered marble can be used as substitute to ceramics in the manufacture of commercial tiles. It especially determined and compared the water absorption‚ crazing resistance‚ chemical resistance‚ and breaking strength of 59%-50% and 75%-25% powdered marble tiles‚ and the commercial ceramic tiles. The Static Group
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those of Folk (1959‚1962) and Dunham (1962). Both classifications subdivide limestones primarily on the basis of matrix content. Most limestones are classified by Folk allochemical rocks if they contain over l0% allochems (transported carbonate grains). Based on the percentage of interstitial material‚ the rocks may be further subdivided into two groups: sparry allochemical limestones (containing a sparry calcite cement of clear coarsely crystalline mosaic calcite crystals) and microcrystalline
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neutralizes the acid. In this experiment the amount of acid neutralised by one tablet is found. This may be considered a direct measurement of the effectiveness of the tablet. Requirements for the experiment:-[pic] • Indigestion Tablets Calcium Carbonate (CaCO3) • Gas Jar • Clamp Stand • Hydrochloric Acid (HCL) solutions labelled 20‚ 30‚ 40‚ 50 60gdm-3 ( these can be 0.50‚ 0.75‚ 1.00‚ 1.25‚1.50 mol dm-3) • Trough or container • Measuring cylinder • Timer. •
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