Properties of Water Introduction: Water’s chemical description is H2O. As the diagram to the left shows‚ that is one atom of oxygen bound to two atoms of hydrogen. The hydrogen atoms are "attached" to one side of the oxygen atom‚ resulting in a water molecule having a positive charge on the side where the hydrogen atoms are and a negative charge on the other side‚ where the oxygen atom is. This uneven distribution of charge is called polarity. Since opposite electrical charges attract‚ water
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Properties and changes are used to describe matter. A property is a trait of matter‚ when that sample of matter is in a fixed state. There are two different types of properties: physical properties and chemical properties. A change is something that alters the properties of a substance. There are two types of changes: chemical changes and physical changes. A physical property is a property that can be observed without changing the makeup (or composition) of a substance. Some examples of a physical
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Peer pressure I. We often hear about the dangers of peer pressure to teenagers. A. Teenagers take drugs‚ skip school‚ get drunk‚ or have sex because their friends do these things. Desperate to conform to their friends’ values‚ teens may give up their interests in school‚ in hobbies‚ and even in certain people. B. Teenagers may‚ first of all‚ lose or hide their interest in school in order to be like their friends. They adopt a negative attitude in which school is seen as a battlefield‚ with
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The purpose of this experiment is to discover the physical and chemical properties of the studied gases. In discovering these properties it allows the student or observer the ability to identify these gases when they come into contact with them. Procedure Before I began the procedure I gathered all my supplies from the given list in the manual. From there I began the actual experiment and diluted the HCL placed in a test tube and then placed the ZN in the tube as well. I placed the stopper
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Nitration of Naphthalene Wed 2/25/2015 Lab report # 1 Abstract: The purpose of this experiment was to nitrate naphthalene with nitronium ion‚ which is formed at low concentration from a reaction of nitric acid and sulfuric acid. The percent yield from the experiment was 54.4% of the product‚ and the melting point of the possible results were 59 °C for 1-nitronaphthalene‚ and 78°C for 2-nitronaphthalene. Introduction: Polynuclear aromatic hydrocarbons such as naphthalene can be nitrated
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BIO 110 Lab 1 The Scientific Method Exercise 1 1. Based on the information in Table 2‚ the patterns I observed were that were 2ppm of Dissolved Oxygen added each time and there was 1 fish less than the amount of Dissolved Oxygen‚ then 4 fish less‚ then 3 fish less‚ then 4 fish less‚ than 5 fish less. I think that the fish can handle the amount of Dissolved Oxygen to an extent then the population falls‚ but then starts to build back up. I also think that if the population is a bigger number
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Intellectual property is the property generated in the process of intellectual activities. It can be possessed and used‚ and generated benefits. The major components of intellectual property include copyrights‚ patents‚ and trademarks. Similar to tangible property‚ intellectual property which is an intangible property is also protected by the law. The governments and parliaments have given the creators the rights as an incentive to produce ideas that will benefit society as a whole‚ by preventing
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STAT 509 LAB 1 HOSPITAL ADMISSIONS Name_Umeamara Buttt The following is part of a large data set that was collected on persons discharged from a selected Pennsylvania hospital as part of a retrospective chart review of antibiotic usage in hospitals. In order for data to be easily analyzed it must first be entered into a computer data base. Create a database in SPSS and enter the following data. Programming notes are indicated in order to assist you to answer the questions asked
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Chapter 1 highlights nine properties of life. A brief description of order‚ metabolism‚ motility‚ responsiveness‚ reproduction‚ development‚ heredity‚ evolution‚ and adaptation will be provided. Also addressed‚ is how things like a virus‚ prion‚ and viroid‚ can produce‚ but are not considered to be alive. First is order. Order or structural and behavioral complexity lies in specific relationship to all other structures and activities. It is the precise arrangement of things structured together
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Properties of Water Lab # 1 Biology 111 January 23‚ 2011 INTRODUCTION With surface tension it is made possible for items such as paper clips to float on water‚ because a molecule within the mass of a liquid encounters gravity to all adjacent molecules in all directions. When you use surfactant substances this creates hydrogen bonds. Purpose of experiment 1 will be to show that once the surfactant substances hits the hydrogen bond pulls down paper clips. Things
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