Science Essays
4,476 Science Free Papers: 811 - 840
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Chemistry Rate of Reaction
GCSE Science Chemistry Coursework What Affects the Rate of Reaction? In this coursework I will be answering the above question; this will be done from an investigation into an experiment. In this experiment I will conduct various pre-test so I know what component I will use in my main experiment
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Chemistry Report
Invisible and Cancer Causing Every day people walk around not thinking about anything around them. Except for maybe how beautiful it is out side. Yes it might be the perfect day, real bright and sunny, no clouds anywhere in the sky, and about 80BF. But right above you, even
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Chemistry Sodium Thiosulpahte
Introduction Over the next few weeks I will be doing several attempts of the same experiment that involves the reaction of sodium thiosulphate and hydrochloric acid, I will be closely watching the reaction and how long in takes for the reactants to react. As yet I have not decided
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Chemistry Study
CHEMISTRY STUDY NOTES: Module 1: The Chemical Earth 1.1 Construct word and balanced formulae equations of chemical reactions as they are encountered. STEPS: 1. General equation 2. Word equation 3. Formula equation 4. Balanced equation 5. Ionic equation Neutralisation: 1. base + acid  salt + water 2. calcium hydroxide
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Chemistry Study Guide
Chemistry Study Guide Oct 2nd 1 hour Exam Chapter 9- Thermodynamics KE= Ð... mv2 w= F∆x w= force Ч distance ∙ A state function refers to a property of the system that depends only on its present state. ∙Internal Energy = heat + work ∆E = q + w ∙Pressure
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Chemistry Term Paper
Organic chemistry is the study of essentially all substances containing carbon. Organic compounds that contain only carbon and hydrogen are called hydrocarbons. The simplest hydrocarbons are the alkanes which contain only single covalent bonds. Methane is the simplest alkane. It is also the major component of natural gas. Methane contains
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Chemistry Terms
Elements and Compounds- They are both classified as substances and are found in mixtures. They are different because elements cannot be broken down any further and also because compounds are made of two or more substances while elements consist of only one. Mixtures and compounds- They are both made of
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Chemistry Vitamin C
tamin C, ascorbic acid, is one of the most important vitamins found in citrus juices, including orange juice. Often projects find that orange juices made from frozen concentrated orange juice (FCOJ) have the highest vitamin C levels as compared to freshly squeezed or not-from-concentrate (NFC) juices. This is probably due
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Chemistry Vocab.
Chem. Ch. 8 Vocab. 1. chemical equation- a representation, w/ symbols and formulas, of the identities and relative amounts of the reactants and products in a chemical reaction. 2. coefficient- a small whole number that appears in front of a formula in a chemical equation. 3. formula equation- a representation
Rating:Essay Length: 283 Words / 2 Pages -
Chemistry- Collision Theory
.Experiment for Chemistry Coursework For this investigation I am looking at how the concentration of acid can change the reaction and how I can explain this using collision theory. My Prediction: I predict that the greater amount of concentration the faster the reaction will take place. Therefore, particles in the
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Chemisty Project
The aim of this investigation is to find the molar mass of magnesium by making magnesium and hydrochloric acid react and then apply the ideal gas equation. The independent variable of this experiment is the amount used of each substance. However, these were not not be varied. The dependent variable
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Chemosynthesis
Introduction Synthesis is the process of producing a chemical compound usually by the union of simpler chemical compounds. For example, photosynthesis, the word photo means putting together with light. Photosynthesis is the process of converting sunlight into food for organic organisms such as plants. Photosynthesis is the basis of life
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Chemosynthesis
Must objectives Must meet if impacts 1 2 3 4 5 6 7 Meets all safety and environmental standards Y = yes N = no N/A = not applicable Y Y Y Y Y Y Y PG or G rating Y = yes N = no N/A = not applicable
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Chemsitry Coursework
Chemistry Coursework An investigation: Reacting magnesium with hydrochloric acid Introduction Experiment equation = Magnesium + Hydrochloric acid Magnesium Chloride + Hydrogen Mg + 2HCl MgCl2 + H2 The aim of the experiment is to investigate how the concentration of hydrochloric acid affects the rate of reaction with magnesium, i.e. how
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Chemtract
The tethered agonist approach to mapping ion channel proteins - toward a structural model for the agonist binding site of the nicotinic acetylcholine receptor. Research by Lintong Li, Wenge Zhong, Niki Zacharias, Caroline Gibbs, Henry A Lester, Dennis A. Dougherty. Condensation of the Research Purpose of the Study: The purpose
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Chi Squares
Chi-Squared Procedure: The formula for calculating chi-square is: χІ = Σ(o - e)І / e That is, chi-squared is the sum of the squared difference between observed (o) and expected (e) data, divided by the expected data in all possible categories. ----------------------------------------------------------------------------- Chi Squared Example The following example consists of
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Chicken Hatching
Experiment: Chicken Hatching Background Information Some facts about chickens A chicken is a bird. One of the features that differentiate it from most other birds is that it has a comb and two wattles. The comb is the red appendage atop the head, and the wattles are the two appendages
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Child Abuse
Imagine for one moment that you are not yourself any longer. Visualize instead that you are a young girl; old enough to know right from wrong yet still young enough to be terrified by the dark shadows in your room. It is a cool autumn night and your parents have
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Child Development - Fact: Middle Children Have It Hard
"Fact: Middle children have it hard" Bello, Fausat Child Development 1 Hammond, Online education Name: Lindsey Age: 15 Grade: 11 Household #: 5 Siblings: 3 Other : Middle child 1. Your favorite nickname? Fritz 2. Do you have any pets? Yes, two rabbits. 3. What is your favorite color?
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Childhood Autism
The purpose of this paper is to identify and gather information on a childhood disorder and a facility that addresses the needs of that specific population afflicted with the disorder. By researching a disorder that the reader (and researcher) knows very little about, it offers an opportunity to gain more
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Childhood Obesity
Childhood Obesity Childhood obesity has become an epidemic over the past ten years in the United States. It is also becoming a national problem. Children all over America are not getting in enough physical activity and aren't eating healthy for a number of reasons. There are roughly 22 million under
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Childhood Obesity: A Growing Epidemic
Childhood Obesity: A Growing Epidemic Matt Vogel University of South Dakota Introduction: Would you like to super-size this meal for an extra $.39? That is a question far too many Americans hear everyday. People in this country are getting fatter and fatter. "In a study conducted by the independent
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Chimpanzee Behavior
Many scientists believe one of the reasons humans are so successful, is our ability to solve problems. We found ways to keep warm in cold climates. We devised weapons to hunt animals bigger and stronger than ourselves. Do we have an exclusive on innovation? At the Max Flanck institute in
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Chinas Problems
In China, there are many issues that will be addressed in this essay. From Nature Reserves, to over population, to the endangered giant panda. In this essay, I will tell you not only about the problems in China, but I will also let you know what the local government is
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Chinas Response to Overpopulation
Introduction Today so many children and people in the world suffer from poverty and starvation. In so many third world country's families are going without food or good water. Never before have we seen so many children die before the age of five. It is impossible to feed all of
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Chinese
In the beginning, the heavens and earth were still one and all was chaos. The universe was like a big black egg, carrying Pan Gu inside itself. After 18 thousand years Pan Gu woke from a long sleep. He felt suffocated, so he took up a broadax and wielded it
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Chinguacousy Park
Chinguacousy Park is located in Brampton, Ontario. This park has everything and is always packed with people. Most of the city's celebrations take place in Chinguacousy Park since it is considered one of Brampton's most prominent parks. When I went inside the park, my first expression was "wow"! Everything was
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Chirality of Ethyl-3-Hydroxybutanoate Generated from a Biological Pathway
Chirality of Ethyl-3-hydroxybutanoate Generated from a Biological Pathway Jake Zimny LaSalle University Philadelphia, PA 19141 Submitted February 10, 2006 Abstract: The reaction being studied is a reduction of a ketone into an alcohol with a chiral center. Because a biological agent, bakers' yeast, is being used to drive this reaction,
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Chiropractic Assignment
1. Why did the patient present to the clinic in their first visit? Was the complaint a musculo skeletal problem, a visceral problem or other? The day I went to the clinic was also the patients first visit where she had numerous complaints about pain in her body. These included
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Chlamydia
Chlamydia Chlamydia is a curable sexually transmitted infection (STI), which is caused by bacteria called Chlamydia Trachomatis. Chlamydia infection is very common among young adults and teenagers. Many people do not know that they have Chlamydia because although they are infected they may not have any symptoms. About 75% of
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