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Free research essays on topics related to: chemical reaction

23 results found, view free essays on page:

  • Rate Of Reaction Bunsen Burner
    1,230 words
    Investigate A Factor Which Affects the Rate Of Fermentation Of Yeast This experiment is investigating one of the factors which affects the rate of fermentation of yeast. Several factors affect the rate of reaction: &# 61656; Increasing the concentration. (See the lock and key theory. ) If the substrate (glucose) is increased, then there would be more keys for the locks, therefore an increase in reactant concentration leads to an increase in reaction rate. &# 61656; The surface area, the bigger t...
    Free research essays on topics related to: carbon dioxide, rate of reaction, chemical reactions, degrees celsius, bunsen burner
  • Rate Of Reaction Carbon Dioxide
    1,229 words
    ... onward sources, from a textbook, encyclopedia, and preliminary work that I have done in class. I have shown my results on a bar chart and a line graph. On the line graph, I have drawn a curve of best-fit. There were no anomalous results. From my results, and my graph, I have found out that as the temperature of the enzymes (yeast in this case) is increased, the rate of reaction speeds up. However, when the temperature reached a certain point, (about 40 degrees Celsius), the enzymes became de...
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  • Chemical Reaction Living Things
    502 words
    Why is knowledge of chemistry important to biology? Biology is the study of all living things and chemistry is the study of chemicals and their interactions. So, how are they related? Our bodies are made up of hundreds and hundreds of chemicals. We just dont think of them like that. Did you ever wonder how your body turns food into energy? Its a chemical reaction. Thats chemistry involved in biology. Our bodies have hundreds more chemical reactions. A chemical reaction is one chemicals response ...
    Free research essays on topics related to: chemicals, biology, chemistry, chemical reaction, living things
  • Time It Takes Time Of Death
    1,266 words
    One of the first things that happens after death is that the temperature in the body starts to drop. Before the temperature in the body core drops, a temperature gradient must be established from the outside to the core. After this gradient has become established the body temperature will drop with a theoretically predictably rate. This fact can be used to estimate time of death. Even if one succeeds in predicting when the temperature of the body core was 37 degrees Celsius, one has to remember ...
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  • Chemical Reaction Kinetic Energy
    633 words
    The rate of a chemical reaction is the derivative of the extent of the reaction with respect to time, to measure the effect of concentration upon the rate of the reaction of peroxydisulfate ion with iodine ion; to determine the order of the reaction with respect to the reactant concentrations; and to obtain the rate law for the chemical reaction. Four reaction solutions are prepare as: 1 - Dilute 5 mL of 0. 2 M KI solution with 10 mL of distilled water in a test tube, add 3 drops of starch solut...
    Free research essays on topics related to: blue black, black color, higher temperature, chemical reaction, kinetic energy
  • 2 O 2 H 2 O
    333 words
    Introduction: Within each of our body cells are thousands of enzymes. These enzymes are proteins, or chains of amino acids that are responsible for chemical reactions. Enzymes are also called organic catalysts. A catalyst is a substance that speeds a chemical reaction without getting changed much itself. The catalyst well be using in this experiment is Hydrogen Peroxide or H 2 O 2. Objective: To demonstrate the activity of enzymes under different conditions. 3) Chicken liver (fresh, boiled, froz...
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  • Organic Chemistry Molecular Genetics
    1,437 words
    ... and Structure and Bonding 1 (CHEM 212), Analytical Chemistry/Laboratory (CHEM 223 / 223 L), Analytical Chemistry Laboratory 2 (CHEM 224 L), Fundamentals of Biochemistry (CHEM 233), Chemical Thermodynamics 1 (CHEM 254), Organic Chemistry 2 /Laboratory (CHEM 265 / 265 L), Synthetic Organic Chemistry/Laboratory (CHEM 360 / 360 L), Advanced Biochemistry Laboratory (CHEM 334 L), Elementary Statistics for biology (STAT 202), Elective courses chosen from Group A, B, and C (Seven credits from Group ...
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  • Concentration And Reaction Rate
    1,776 words
    ter> How concentration affects reaction rate. The aim of this investigation is to see how the concentration of a reactant in ratio to the reactor affects the rate of a reaction. When hydrochloric acid and Thiosulphate react together sulphur is liberated this means that as the reaction goes on the solution will become yellow and will change from being transparent to translucent to opaque. The sulphur is formed as a solid but not in the usual precipitation way. Na 2 + S 2 + 2 HCL 2 NaCl+...
    Free research essays on topics related to: reaction rate, activation energy, hydrogen peroxide, rate of reaction, measuring cylinder
  • Sulfuric Acid Sodium Hydroxide
    1,751 words
    Acid Rain Written by: Ali Right Introduction Acid rain has become an environmental concern of global importance within the last decade. With the increasing environmental awareness of the "unhealthy" condition of our planet earth the concern about acid rain has not lessened. In brief, acid rain is rain with pH values of less than 5. 6. When dealing with acid rain one must study and understand the process of making Sulfuric acid. In this project we will take an in depth look into the production of...
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  • Lead Acid Battery Potassium Hydroxide
    787 words
    There are many kinds of batteries which consist of different materials in order to produce an electric charge. Here are some of the most common batteries, what they consist of and how they work. Bichromate Cell (see picture # 1) A battery is a device which converts chemical energy into electrical energy. A battery usually consists of two or more cells connected in series or parallel, you can also have a single cell battery. All cells consist of a positive electrode, and a negative electrode. An ...
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  • First World War Chemical Weapon
    1,028 words
    Through out time, war has been a large event upon the human life. Way back in tine man use to fight with swords over land and other titles. But, today we use explosives, such like conventional weapons. This was started when we developed technology along with war. With the combination of sulfur, charcoal, and saltpeter we developed gunpowder. Soon after the invention of conventional weapons, man has developed biological weapons; then chemical weapons; and lastest being the newest nuclear weapons....
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  • Chemical Reactions Three Types
    890 words
    Chemical Chemical Reactions CHEMICAL REACTIONS Chemical reactions are the heart of chemistry. People have always known that they exist. The Ancient Greeks were the firsts to speculate on the composition of matter. They thought that it was possible that individual particles made up matter. Later, in the Seventeenth Century, a German chemist named George Ernst Stahl was the first to speak of chemical reaction, specifically, combustion. He said that a substance called phlogiston escaped into the ai...
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  • Chemical Reaction Kinetic Energy
    865 words
    Rates of Chemical Reactions 1: I-Purpose: The rate of a chemical reaction is the derivative of the extent of the reaction with respect to time, to measure the effect of concentration upon the rate of the reaction of peroxydisulfate ion with iodine ion; to determine the order of the reaction with respect to the reactant concentrations; and to obtain the rate law for the chemical reaction. II-Material and: Four reaction solutions are prepare as: -solution 1: 25. 0 mL KI solution 1. 0 mL starch sol...
    Free research essays on topics related to: chemical reaction, blue black, black color, higher temperature, kinetic energy
  • Chemical Reaction Nuclear Reaction
    980 words
    Cold Fusion: The Continuing Mystery In March of 1989, a discovery was made that rocked the scientific world. Stanley Pons and Martin Fleischman had announced that they were able to create and sustain a cold fusion process. After intense media attention, and corresponding interest in future test, the subject seemed to have faded away. Future tests proved inconclusive, and when the quick promise of easy energy didn t materialize, most quickly forgot the subject. Little is said about the continuing...
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  • 20 Th Century Carbon Dioxide And Water
    2,337 words
    COMBUSTIOn &# 038; carbon Dioxide Research By Reason Hutcherson II. Combustion and carbon dioxide, what are they? When people think of combustion they probably think of simple just bursting into flames; and for carbon dioxide you probably think of what we breath out and what plants take from the air and turn to oxygen. Even though these thoughts are true there is much more to combustion and carbon dioxide. Things you might not think of about combustion are, mathematical equations, models, soluti...
    Free research essays on topics related to: 20 th century, earths atmosphere, carbon monoxide, carbon dioxide and water, dry ice
  • Source Of Energy Due To The Fact
    2,196 words
    Over the past four or five decades, and especially in recent years, there has been a lot of talk among the scientific community and in everyday life about the development of nuclear fusion as an energy source. It seems that the everyday person has some sort of fairy tale image of fusion power in the back of their head. When they hear about dwindling un renewable resources such as coal, oil, and natural gas, they just sort of file it away with the hope that fusion power will come flying down with...
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  • Carbon Atoms Specific Heat
    4,299 words
    I am going to investigate the difference in enthalpy of combustion for a number of alcohols, the enthalpy of combustion being the enthalpy change when one mole of any substance is completely burnt in oxygen under the stated conditions. I will be attempting to find how the number of carbon atoms the alcohol contains effects the enthalpy change that occurs during the combustion of the alcohol. Method I plan to measure the enthalpy change by burning the alcohol, using a spirit burner, I will then u...
    Free research essays on topics related to: specific heat, temperature increase, carbon atoms, heat energy, chemical reaction
  • Hydrogen Peroxide Graduated Cylinder
    1,654 words
    Situations That Govern the Pace of an Enzymatic Reaction: Enzyme Concentration, Temperature, and phone Saunders BSC 1010 C; T, R: 11: 50 - 12: 05 Lab: T: 12: 15 - 3: 05 INTRODUCTION: An enzyme is any one of many specialized organic substances, composed of polymers of amino acids that act as catalysts to regulate the speed of the many chemical reactions involved in the metabolism of living organisms. The word enzyme comes from the Greek phrase? en yeast? . Many scientists who studied enzymes in t...
    Free research essays on topics related to: ph levels, chemical reactions, hydrogen peroxide, graduated cylinder, test tubes
  • Rate Of Reaction Calcium Carbonate
    2,367 words
    Investigation Into The Relationship Between Temperature Of Investigation Into The Relationship Between Temperature Of Acid And The Rate Of Reaction In The Reaction Of Caco 3 And Hcl Background Information The speed at which reactants are converted into products during a reaction is referred to as its rate. Usually in a reaction, the amount of the product of the reaction is measured to work out the rate of the reaction. In this reaction, the rate will be calculated by the equation: Rate = 1 Time....
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  • Compton Carbon Dating
    5,413 words
    Introduction: Millions of words have been written about the remarkable cloth preserved at Turin. More recently, most of these writings dealt with one basic question, was it the actual winding sheet of the crucified Christ, bearing an imprint of His body? Or was the whole thing a gigantic hoax? A fantastic forgery of the Middle Ages? Erudite men have lined up on both sides of that compelling query. Some of the facts about the Holy Shroud have something to do with the presence of human blood and o...
    Free research essays on topics related to: jesus christ, middle ages, carbon dating, reader , compton

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