ReportTitle: Observations of Chemical ChangesDate: 9/9/13Name: Purpose: The purpose of this experiment is for the student to gain knowledge and experience regarding how avariety of chemicals react to one another. In addition‚ the student should also gain a betterunderstanding of the household chemicals that they use in their day to day lives.Procedure:Observe the chemical changes that occur by mixing a list of chemicals (provided in the lab manual).Add 2 drops of the first chemical into a well in the 96
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Observation of Chemical Change Course: General College Chemistry Purpose This experiment examines the reactions of common chemical s contained in consumer products. The purpose is to observe the macroscopic changes that these chemicals undergo. The goals of the experiment observe properties of chemical reactions and to associate chemical properties with household products. Procedure We do not have the ability to see with a naked eye individual atoms and molecules reacting during chemical changes
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Experiment In this lab we were asked to observe changes and colors when mixing two or three chemicals together. The actual experiment itself used twelve different pipits and three chemicals I selected from my house. To begin‚ I first gathered everything‚ including the 96 well plate‚ 24 well plate‚ goggles‚ and gloves along with the observations of chemical changes bag. I set it up all on the the kitchen table that had paper towels on it. Next‚ I made my data table so that I could record my reactions
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Speciation Tiffany Johnson SCIE/211 Laura Stepp Purpose What would happen if a species within a population were to suddenly split in two groups by an earthquake that creates a physical barrier like a canyon? Introduction Reproduction is a natural and normal thing in our day to day lives. Animals and humans reproduce offspring‚ all year round. Separation is usually the furthest thing from our minds. But‚ mother natural can always turn anyone’s world upside down. For Example
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bonds formed between two ions by the transfer of electrons. The speed at which a chemical reaction proceeds is known as the rate of reaction. The rate of almost every reaction can be increased or decreased due to different factor. Scientists have identified five factors that affect the rate of reaction. The five factors are temperature‚ concentration of the reactants‚ surface area‚ agitation (mixing)‚ and catalyst (chemical helpers). The collision theory states that the rate of a reaction is directly
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Examination of Water and Wastewater 5210 BIOCHEMICAL OXYGEN DEMAND (BOD)*#(1) 5220 CHEMICAL OXYGEN DEMAND (COD)*#(2) 5220 A. Introduction Chemical oxygen demand (COD) is defined as the amount of a specified oxidant that reacts with the sample under controlled conditions. The quantity of oxidant consumed is expressed in terms of its oxygen equivalence. Because of its unique chemical properties‚ the dichromate ion (Cr2O72–) is the specified oxidant in Methods Section 5220B‚ Section
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Name: Keziah V. Cuyom Section: 9 - Malaya Topic: Types of Chemical Reaction A chemical reaction is a process that is usually characterized by a chemical change in which the starting materials (reactants) are different from the products. Chemical reactions tend to involve the motion of electrons‚ leading to the formation and breaking of chemical bonds. There are several different types of chemical reactions and more than one way of classifying them. Here are some common reaction types. However‚ if
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The conditional fee arrangement was introduced by the Access to Justice Act (AJA) 1999‚ as an attempt to transfer legal funding from the treasury to the private sector. This occurred as a result of an increasing and ridiculous growth in the cost of legal aid‚ namely from a few hundred million to well over 2.1 billion pounds from the 1980s to 2000. Moreover‚ it was not because demand was growing. Rather‚ number of cases relying on legal aid had decreased. Due to the need to control budget‚ Conditional
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is part of life and is okay while others believe bullying is a major problem in today’s world. In this essay‚ the view-point being claimed is bullying is harmful and actually can become dangerous to an individual causing mental damaged‚ possibly physical or even loss of a life. The counterargument is people believing that bullying is okay and actually helps teenagers grow up and be a stronger individual. The stakeholders are the parents of the bullies‚ the bully‚ and the victims. As you read on‚
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Classifying Chemical Reactions Purpose: The purpose of this experiment is to observe a variety of chemical reactions and to identify patterns in the conversion of reactants into products. Apparatus: • Bunsen or lab burner -Test tube clamp • Butane safety lighter - Test tube rack • Evaporating dish - Wash bottle • Forceps or crucible tongs - Wood Splints • Heat resistant pad • Litmus paper • Pipets • Spatula • Test tubes Materials: Ammonium carbonate‚
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