Subject –Chemistry Chemical Equations and reactions Very Short Answer (1 marks each) Write the name and formula of compounds forms between a. Potassium and iodine ion .b.Sodium and sulphide ions . c. Aluminums and chloride ions 2. Why does milk sour when kept for a long time/ 3. What happen when hydrogen combine with oxygen in presence of electric current/ 4. Define electrolysis. 5. What is decomposition reaction? Give an example 6. Calcium oxide react
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Redox reactions (Redox terminology‚ galvanic cells‚ standard electrode potentials‚ strength of oxidizing/reducing agents‚ corrosion and protection against it) Oxidation is defined as the loss of electrons and reduction is defined as the gain of electrons. Oxidizing agents‚ such as oxygen are defined as substances which accept electrons; reducing agents are substances which donate electrons. Redox reactions are: a) The reactions of metals with non-metals 2Na+Cl2→2Na+Cl- b) The reactions
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Cumberland Metal Industries: Engineered Products Division‚ 1980 October 21‚ 2013 CA by Yiwen Zhang Cumberland Metal Industries (CMI) is one of the largest metal manufacturers in the world. The company evolved from selling metal as a finished product to one that used it as a raw material‚ increasing sales from $250‚000 in 1963 to over $18‚500‚000 in 1979. Currently‚ CMI relies heavily on SlipSeal‚ which is used as a high-temperature sealant in automobiles. Although CMI dominates
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I. BACKGROUND CMI has developed a new technology using curled metal to create pile driving pads. Compared to existing products on the market‚ these pad offer several benefits: • Faster pile driving saves contractors rental fees‚ labor expense ‚ and spreads overhead over more feet driven in a given period of time • Longer life of pads save contractors additional cost in reducing changeover time • Heat resistance further reduces changeover time‚ saving additional expenses • Safety – CMI pads
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------------------------------------------------- ABSTRACT ------------------------------------------------- The copper reaction experiment was demonstrated by adding the reagents like 16M HNO3‚ Distilled water‚ 6M NaOH‚ 6M H2SO4‚ Acetone‚ Zinc metal and Methanol into the beaker with the copper wire. The experiment was also demonstrated to observe how copper reacts while different reagents were being added. It was also demonstrated to practice the common laboratory techniques such as methods
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Cumberland Metal Industry 1‚2- The first two questions will be gone through together in order to avoid confusion. Pricing is one of the most important elements to launch a product on the market. Mainly‚ because it is the only element‚ together with the marketing mix‚ that produces revenues. It is fundamental to set the right strategy in deciding and setting the price of a certain product to be sure that is fully understood and appreciated by customers in all its aspects and characteristics. A
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ATLAS METAL COMPANY CASE Executive Summary The purpose of this report is to help a financial special assistant‚ Linda‚ to analyze the financial position of Atlas Metals Company and deciding its capital budgeting and capital structure. Firstly‚ I explain why firm should use Net Present Value (NPV) methods for capital budgeting rather than Return on Investment (ROI) method and Payback Period method. Secondly‚ I calculate the Weighted Average Cost of Capital (WACC) which will be used as discount rate
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ACID/BASE You might need to know the following K values: CH3COOH Ka = 1.8 x 10–5 Benzoic Acid Ka = 6.5 x 10–5 HNO2 Ka = 4.5 x 10–4 NH3 Kb = 1.8 x 10–5 HF Ka = 7.2 x 10–4 H2S Ka = 5.7 x 10–8 HSO4– Ka = 1.2 x 10–2 HS– Ka = 1.2 x 10–13 HCOOH Ka = 1.8 x 10–4 HOCl Ka = 3.0 x 10–8 SIMPLE ACIDS AND BASES 1. According to the Brønsted–Lowry definition‚ which species can function both as an acid and as a base? (A) Cl– (B) SO42– (C) NH4+ (D) HCO3– (E) H3O+ 2. Which of the following
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Curled Metal Inc – Engineered Product Division Overview Cumberland Metal Industries (CMI) was a company which sold metal as raw material in other products. After the company had developed the product – Slip Seal that could meet the demanding specification of the automakers‚ it had grown rapidly over the past decade. The sales increased from $750‚000 in 1991 to over $55 million in 2007. However‚ the sales decreased from 61 million in 2006 to 55 million in 2007‚ a net decrease of 9.5%‚ the net
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EXTRACTION OF BENZOIC ACID‚ 2-NAPHTHOL‚ AND NAPHTHALENE FROM UNKNOWN SAMPLE # 131 Douglas G. Balmer (T.A. Mike Hall) Dr. Dailey Submitted 11 July 2007 Introduction: The purpose of this experiment was to separate a sample of benzoic acid‚ 2- naphthol‚ and naphthalene of unknown proportions using a two-base extraction method. The three components of the mixture will react differently to sodium bicarbonate and sodium hydroxide because each of the bases’ conjugate acids has a different pKa. The
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