There are three reactions in the iodine clock reaction. The first reaction is IO3-(aq) + 3 HSO3-3 SO4-(aq) + I-(aq)+ 3 H+(aq)‚ where the iodate ions become iodide ions1. The second reaction is 6 H+(aq) +IO3-(aq) + 5 I-(aq) 3 I2(aq) + 3 H2O(l) where the iodate ions become molecular iodine2. The third reaction involves molecular iodine becoming a dark blue starch;I2(aq) + starch blue-black complex3. These three reactions react in a sequence. In any reaction the concentration is exponentially related
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Lab Partner: _____________________________________________________________________ Investigating Factors that Affect the Rate of Enzyme Activity See Textbook Pg 61. Enzymes are very large complex organic molecules that are synthesized by the cell to perform specific functions. These biological catalysts are important because they speed up the rate of the reaction that would otherwise be too slow to support life. Catalase is an enzyme present in the cells of plants‚ animals and aerobic (O2
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MANAGEMENT CASE describes a real-life situation faced‚ a decision or action taken by an individual manager or by an organization at the strategic‚ functional or operational level HCL: Facing the Challenge of the Laptop Market Jaydeep Mukherjee and Mahalingam Sundararajan M r. Ajai Chowdhry‚ Chairman and CEO at HCL Infosystems Limited‚ a major technology hardware player in India‚ was pondering upon the company’s marketing strategies to build its laptop sales in 2010-111. Driven by powerful
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going to do an experiment to see how surface area effects the rate of reaction when added to hydrochloric acid. I will add calcium carbonate (marble chips) to hydrochloric acid. When calcium carbonate is added to hydrochloric acid a reaction takes place. The solution fizzes and gives off the gas carbon dioxide. I will collect this gas in a gas syringe and will time how long it takes for the reaction to produce 100cm3 of carbon dioxide. CaCO3 +2HCL Co2 +CaCl2 +H2O CalciumHydrochloricCarbonCalciumWater
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Kinetics Factors Affecting Reaction Rate OVERVIEW Chemical reactions occur at different rates. In this experiment you will consider some of the key factors that influence the rate of a reaction: nature of reactants - particle size temperature concentration catalysts According to the collision theory‚ the rate of a reaction depends on the frequency of collisions between reacting particles. The more frequent the collisions‚ the faster the rate of the reaction. However‚ in order for the collisions
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Assignment One - Case study‚ Hindustan Computers Limited (HCL Technologies) Behaviour modification strategies. Behavior modification strategies are based on the principals of operant conditioning and reinforcement theory‚ which take the view that learning is influenced by the environment. The renowned psychologist B. F. Skinner expressed that through operant conditioning‚ people’s behavior could be shaped by reinforcement or lack thereof. According to Wood‚ et al‚ a reinforcer is a stimulus
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Report Name Module Name: Financial Analysis & Management (NOTE: Word count 3714 excluding Appendix and References) Contents 1. About HCL Technologies 4 2. Objectives of Study 6 2.1 Scope 6 3. Concept of Financial Statement & Ratio Analysis 7 3.1 Financial Statement 7 3.2 Ratio Analysis 7 3.3 Significance of Ratio Analysis in Financial Statement 8 3.4 Limitations of Ratio Analysis 9 4. Data Analysis 11 4.1 Liquidity Ratio 11 4.1.1 Current Ratio 12 4.1.2 Quick Ratio 13 4
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The rate of reaction between sodium thiosulphate and hydrochloric acid Candidate name: Yeo Jin Kim (Kimberly Kim) Candidate number: 000791-021 Teacher: Yitao Duan 1.0 Aim The aim of this experiment is to investigate the changing of concentration effect the rate of reaction between sodium thiosulphate and hydrochloride. 2.1 Chemical Equation 2.0 Raw data 3.2 Qualitative Data 2.1.1 Before the experiment Substance | Color | State | Smell | Hydrochloride (HCl) | Colorless
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Concentration of a Reactant Can Affect the Rate of Reaction Aim To plan an investigation that allows me to measure the effect of increasing the concentration of a reactant on the rate of reaction. With the results generated‚ it is also hoped to draw accurate conclusions and explain the results using scientific knowledge. Introduction Some reactions are fast‚ for example neutralisation or burning magnesium in air to produce magnesium oxide. However‚ other reactions can be slow‚ for example‚ rusting of
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Cu-Zn voltaic cell used in the experiment. Zinc has higher reactivity and it is more likely to loss electrons. Thus‚ electrons flow from Zn electrode to Cu electrode. Copper stripe is the positive electrode. Zinc stripe is the negative electrode. Reaction happened on each terminal: Positive terminal: Zn-2e-→Zn2+ Negative terminal: 2H+2e-→H2 It is assumed that bubbles (hydrogen gas) will come out from copper electrode. It is assumed that zinc and copper stripes are pure. Classification of variables
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