Chemical Reactions and Equations Chemical Reaction: The transformation of chemical substance into another chemical substance is known as Chemical Reaction. For example: rusting of iron‚ setting of milk into curd‚ digestion of food‚ respiration‚ etc. In chemical reaction new substance is formed which is completely different in properties from the original substance‚ so in a chemical reaction chemical change takes place. Following are the signs of chemical reaction: (a) Change of state of substance
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again can interfere with the functions of that metal. Aim: the aim of this experiment is to evaluate the effect that sodium chloride has on the rate of corrosion of iron. 1. Experiment 1 2. Hypothesis: An increase in the level of sodium chloride in water will increase the rate of corrosion of an iron nail. 3. The independent variable is the amount of sodium chloride in the water 4. The dependent variable is the rate of corrosion; this will be measured by calculating the percentage
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in prevalence‚ incidence‚ and control Hodges‚ B. C.‚ & Videto‚ D. M. (2011). Assessment and planning in health programs (2nd ed. ed.) Sudbury‚ MA: Jones & Bartlett Institute of Medicine (IOM)(2004) Dietary reference intakes for water‚ potassium‚ sodium chloride‚ and sulfate in the United States. Rev Panam Saluda Publica. 2012; 32: (4):301–306. Lippincott (2015). Nursing 2015 drug handbook .Philadelphia‚ PA: Lippincott‚ Williams‚ & Wilkins Maville‚ J. & Huerta‚C. (2008). Health promotion in
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CONTROL Reduction in the water volume. Reduction in the conc. /amount of chemicals used thereby reducing their harmful effects. Reduction of waste concentration by recovery and reuse. Reduction of waste concentration by chemical substitution. Reduction of waste concentration by process modification. Segregation of effluent of each process. Devising suitable treatment for ultimate disposal‚ to meet the requirements. To explore the economics related to reuse of treated effluent. Reduction in waste
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1 The basic functioning units of the nervous system are nerve cells‚ or neurons. Neurons are specialized cells of the nervous system that transmit signals throughout the body. The most important structures of a neuron are the long extensions that extend out from the cell body which are Dendrites and Axons. Dendrites are extensions of neurons that receive signals and conduct them toward the cell body whereas Axons are extensions of neurons that conduct signals away from the cell body to other cells
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Neutralise 25cm3 Of Sodium Carbonate of an unknown Concentration Using Methyl Orange Indicator. Pipette Solution | Sodium Carbonate | Mol/dm3 | Burette Solution | Hydrochloric Acid | 0.12Mol/dm3 | Indicator | Methyl Orange | | | | Trial 1 | Trial 2 | Trial 3 | Burette readings | Final/cm3 ± 0.05 | 14.80 | 14.50 | 14.60 | | Initial/cm3 ±0.05 | 0.00 | 0.00 | 0.00 | Volume Used (titre)/cm3±0.10 | | 14.80 | 14.50 | 14.60 | Mean Titre/cm3 ±0.05 | | 14.63 | * The sodium chloride and
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Experiment 8 Unique # 51070 The main purpose of the experiment involves two oxidation-reduction reactions to calculate the oxidizing capacity of a sample of unknown bleach. In order to determine the volume of Na2S2O3 added‚ students will conduct a titration of bleach with thiosulfate with addition of a starch indicator to find the end point of the titration. Moreover‚ the oxidizing capacity of bleach is calculated with the percentage by mass of NaOCl in the unknown bleach sample. The overall
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sulft pentahydrate CuSo4.5H2o AR Sinopharm Chemical Reagent Co.Ltd Sodium hydroxide NaOH AR Sinopharm Chemical Reagent Co.Ltd Potassium Sodium Tartrate Tertrahy drat C4H4O6KN4 .4H2O AR Sinopharm Chemical Reagent Co.Ltd Silver Nitrate AgNO3 AR Sinopharm Chemical Reagent Co.Ltd Trisodium Citrate dihydrate C6H5Na3O7.2H2O AR Sinopharm Chemical Reagent Co.Ltd Hydrogen Peroxide H2O2 AR Sinopharm Chemical Reagent Co.Ltd Sodium borohydride NaBH4 AR Sinopharm Chemical Reagent
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Introduction: The oxidation of cyclohexanol involves using household bleach to oxidize this secondary alcohol and produce a ketone product‚ cyclohexanone. Oxidation-reduction (redox) reactions occur when the oxidation state of atoms change due to a transfer of electrons. Oxidation occurs when electrons are ‘lost’ to the formation of bonds and reduction occurs when electrons are ‘gained’ in the braking of bonds (Levine). Using this reaction and its product‚ a redox experiment was performed to familiarize
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–II UNIT-I Electrochemistry Principles Redox reactions Redox stands for reduction-oxidation‚ and are electrochemical processes involving electron transfer to or from a molecule or ion changing its oxidation state. This reaction can occur through the application of an external voltage or through the release of chemical energy. Oxidation and reduction Oxidation and reduction describe the change of oxidation state that takes place in the atoms‚ ions or molecules involved
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