factors affecting the kinetics of reaction between peroxodisulfate (vi) and iodide d. del prado1 and j. belano2 1 department of food science and nutrition‚ college of home economics 2 department of food science and nutrition‚ college of home economics university of the philppines‚ diliman‚ quezon city 1101‚ philippines date submitted: january 7‚ 2013 ------------------------------------------------- ------------------------------------------------- ABSTRACT -------------------------------------------------
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Periodic Table Trends: Atomic Radius - half of the distance between the centers of two atoms that are touching each other decreases moving left to right increases moving top to bottom Ionization Energy - energy required to remove an electron increases moving left to right decreases moving top to bottom Electron Affinity - ability to accept an electron alkaline earth elements have low electron affinities halogens have high electron affinities noble gases have electron affinities near zero
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MATERIALS : METALS AND NON-METALS Y Iron Coal ou are familiar with a number of materials like iron‚ aluminium‚ copper‚ etc. Some materials have been given in Table 4.1. Table 4.1 : Appearance and Hardness of materials Object /Material Appearance Hardness (Shiny/Dull) (Very hard/ Not very hard) similar change if we try to beat a wood log ? Let us find out. Activity 4.1 Take a small iron nail‚ a coal piece‚ a piece of thick aluminium wire and a pencil lead. Beat the iron nail with
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UTAR FHSC1134 Inorganic Chemistry Trimester 3 Experiment 1 ________________________________________________________________________ Title: Investigating the Properties of Period 3 Oxides Aim: To examine the oxides of Period 3 elements and describe their structure and bonding. Introduction: Generally‚ there are oxides of metals and non-metals. Metals burn in oxygen to form basic oxides while non-metals form acidic oxides. Structurally‚ they are covalent or ionic compounds. You are to
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Ionic Reactions Abstract This experiment is designed to study the nature of ionic reactions‚ and write net ionic equations for precipitation reactions‚ as well as to identify spectator ions‚ perception reactions and solubility of different compounds. Experiment and Observations In this experiment I was using a 96-well plate to add two drops of the following solutions into seven wells in rows A through E: cobalt (II) nitrate‚ copper (II) nitrate‚ iron (III) nitrate‚ barium
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excess to the oxidizing agent being determined. This would result to the formation of iodine which would be titrated with the standard thiosulfate solution. (2) For example in this experiement‚ the analyte that was used was copper in the form of CuSO4•H2O. It was strong enough to oxidize iodide ions to Iodine. The analyte was needed to be isolated‚ and we did this by precipitating it out of the solution. To precipitate out Cu (II) ions‚ NH3 was added dropwise – this is to avoid having an excess
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UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS General Certificate of Education Advanced Level *0281936391* CHEMISTRY Paper 5 Planning‚ Analysis and Evaluation Candidates answer on the Question Paper. No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write your Centre number‚ candidate number and name on all the work you hand in. Write in dark blue or black pen. You may use a soft pencil for any diagrams‚ graphs or rough working. Do not use staples‚ paper clips‚ highlighters
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→ 2 NaCl(s) Single Displacement • single substitution • anion always replaces anion • cation always replaces cation • Mg + 2 HCl → MgCl2 + H2 • Complete the following Single Displacement (formula is correct) Al + CuSO4 Double Displacement • 2 substitutions • ion-exchange • MgSO4 + BaCl2 →BaSO4 + MgCl2 • Types of Chemical
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Which of the following is not an attribute of a good domestic fuel? A) Fairly cheap and easily available B) Moderate rate of combustion C) Low calorific value D) Safe to handle‚ store and transport View Solution Question 8 The reaction Zn + CuSO4 → ZnSO4 + Cu is a ____
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(c) Redox Reaction (d) None of these. 3. Heat is evolved diving (a) Endothermic Reaction (b) Displacement Reaction (c) Combustion Reaction (d) Combination Reaction 4. Which of the following is not a balanced equation? (a) Fe + Cl2 → FeCl3 (b) Mg + CuSO4 → MgSO4 + C4 (c) NaOH + HCl → NaCl + H 2O (d) Zn + S → ZnS 5. The reaction between lead nitrate and potassium iodide present in aqueous solutions is an example of (a) Decomposition Reaction (b) Displacement Reaction (c) Double Displacement Reaction
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