Experiment 1: Observations of Chemical Changes Abstract: In the lab 1 experiment‚ the objective was to observed properties of various chemical reactions between twelve different basic compounds. Each reaction revealed chemical properties consisting of color change‚ CO2 gas formation‚ and/or precipitate formation. Certain reactions made it possible to distinguish between an acid and a base. Through the results of this experiment‚ chemical properties observed in the reactions could be used to associate
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Global Variables This writing assignment will focus on global variables. A global variable is a variable every module in a program can see‚ meaning that the entire program is its scope (Gaddis‚ 2010). There are both advantages and disadvantages to using global variables and it is my intention to explore some of them here‚ starting with the disadvantages. There seems to be a lot to be said about the disadvantages of using global variables. First and foremost the scope itself can be a disadvantage
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Group Assignment (Groups of five) a) Come up with a research topic b) From the topic indicate the following 1) The dependent variable 2) The independent variable 3) The extraneous variable 4) The Moderating variable 5) The Intervening Variable Research Topic Impact of a tattoo on a helping request‚ Strohmetz‚ D. B.‚ & Moore‚ M. P. (2003‚ March) A psychologist wondered how people would respond to people with tattoos‚ so he studied
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Two Variable Inequality Katherine Courtney MAT221 Phil Le August 25‚ 2013 Inequalities are equations that can be used to determine not just what something could equal but what something cannot equal. It tells us what the relative size is of two values and if they are big or small‚ too much or not enough. Inequalities could make it easier to determine how much someone might need of something in order to make a certain amount of something‚ while also determining
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Lab : Iodine-starch Clock Reaction Pre-lab: Before the lab was conducted‚ the concentration of the Iodate ions to be in the mixture made by dissolving specific volumes of solution A with a constant concentration and water was calculated using the dissolution formula: C1V1 = C2V2 Sample Calculation 1: Concentration of the Iodate ions: For mixture 1: C2 = C1V1/ V2 = (0.020mol/L) x (0.003L)/(0.01L) = 0.006mol/L The same calculations were used in the calculating of the
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Latasha Thomas January 20‚ 2013 HSM 260 Jerome Anderson Exercise 10.1 Recompute fixed costs‚ variable costs‚ and the BEP. What are the variable costs? What are the fixed costs? How many meals will the WHDM program need to provide during the fiscal year to reach the BEP? How much profit will the program earn if it completes its 45‚000-meal contract with the City of Westchester? The variable cost of service is $3.93 during the fiscal year the WHDM should provide 1‚011 meals to reach their
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Benedict Arnold was born in Norwich Connecticut‚ January 14‚ 1741. He was 1 out of 5 children and his sister that survived to adulthood. When he was growing up his family was wealthy. Benedict’s childhood was rough. Benedict’s father was a successful businessman. His father did not manage to keep the family’s money that well‚ and they were financially ruined. When he was growing up he was a apothecary and a bookseller. At the age of 15 he ran away and enlisted in the Continental Army where he help
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Whatever McDonalds makes whether its 100 or 10‚000 products‚ these cost must be paid. Variable cost – these are costs that change depending on McDonalds output. So if McDonalds makes a burger it will have varying requirements for amounts of bread‚ meat‚ fish‚ cheese and lettuce head will depend on how many burgers the make. Break –even point Businesses can use the calculations that they make of fixed costs‚ variable costs and sales to work out the point at which their costs equal their sales. This
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Benedict Arnold is mostly known for being a traitor to the colonists. He became general on the colonists side then switched to the British side. He gave the british all the secret plans that the colonists had that would have made them win earlier. He became a spy for the british. He joined the war because of the sugar act‚ he was outraged by it. He decided to join the sons of liberty to help protest against it. Benedict joined the militia and soon became the captain. He fought in the battle of the
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Chemical Bonds Chemical Bond: is the force that holds atoms together in a compound. They form because they lower the potential energy of the charged particles that compose atoms. Chemical bonds can be broadly classified into two types: Ionic and Covalent. Ionic: metal & nonmetal Metals have a tendency to lose electrons and nonmetals have a tendency to gain them. The metal atom becomes a cation and a nonmetal becomes an anion. The oppositely charged ions attract one another and form an ionic
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