experiment‚ we were trying to see whether copper‚ after a chain of chemical reactions‚ will revert back to its elemental form. Procedure: First‚ I added nitric acid with copper in a beaker‚ which turned into a copper nitrate‚ a blue-green solution. Afterwards‚ I added sodium hydroxide‚ and my solution colored to a dark blue solution called copper hydroxide. I heated the solution to evaporate the water and I got a brownish-blackish solid called copper oxide. Once the solid appeared‚ I poured
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Purpose: Can the penny hold more drops of water or more drops of the MYSTERY liquid? Research: Cohesion- The state of sticking together. Pennies can hold more water because soap reduces the cohesion of water and the water molecules break apart and can’t stay on the penny. Hypothesis: The penny will hold more a larger number of drops of water because water is more cohesive than the “mystery” liquids Variables: Independent variable: Penny Dependent variable: Number of Drops of Water Control
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Homework 1 1. In December‚ General Motors produced 6‚600 customized vans at its plant in Detroit. The labor productivity at this plant is known to have been 0.10 vans per labor-hour during that month. 300 labors were employed at the plant that month. a) How many hours did the average laborer work that month? b) If the productivity can be increased to 0.11 vans per labor-hour‚ how many hours would be average laborer work that month? 2. George Kyparisis makes bearing balls in Miami plant. With
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1. Retailing is the final activity and steps needed to place a product in the hands of the consumer or to provide services to the consumer. All activities directly related to the sale of goods and services to the ultimate consumer for personal‚ non-business use. 2. Retailing is undergoing so much change today because of e-tailing‚ store size‚ price competition‚ and demographic shifts. E-tailing is basically ordering from the internet and having those items delivered to your home. Store size plays
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Chilean Copper Mine BCOM/275 Resource: ―Over 30 Workers Trapped After Chilean Copper Mine Collapse‖ article found in the Electronic Reserve Readings. Research additional articles and information about the Chilean mine collapse. Write a 700- to 1‚050-word paper using this and other articles as a resource. Because communications must be designed with the audience in mind‚ answer the following questions: What are some considerations to remember given the different roles and people in the audience
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Nichelle McClain Prof. Shaner GSW 1110 15 November 2010 Higher Percentage of Minority Inmates There are over millions of people incarcerated but African Americans and Latinos make up most of the prison population. To attempt to stop certain problems‚ the criminal justice system just put people behind bars and expects that everything will be fine‚ when in reality it isn’t because now the jails are becoming overcrowded. Dealing with the drug war‚ racial profiling‚ and people growing up in low-income
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Determination of % Composition of Pennies Using Redox and Double Displacement (Precipitation) Reactions Introduction: Oxidation involves the gain of electrons of hydrogen or the loss of oxygen or decrease in oxidation state. If zinc completely reacts with HCL‚ then the theoretical yield of copper should be equivalent to the actual yield. Purpose: In this lab‚ we will determine the percent composition of a modern (post-1982) penny by using a strong acid to react and dissolve the zinc
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Penny Argumentative Performance Task Garrett Forrest Do you think the penny should be preserved? The one-cent piece‚ commonly referred to as the penny has been in a giant argument in the United States about whether if we should keep the penny in circulation‚ or abolish the penny totally from the U.S currency. The penny should be abolished totally from the U.S Currency for several different reasons. To begin with‚ have you ever thought about the cost of a penny? If you ask a random person‚ they
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A Bill To Eliminate The Penny: Prelim Legislation #19: PRO The penny: Everyday you find them in your coat pocket‚ or lying on the sidewalk. Anyone who has been to a fast food restaurant has experienced the frustration of being behind someone who is attempting to pay for their purchase off the dollar menu with 100 pennies‚ wasting the time of everyone else in line. Pennies take refuge under couch cushions‚ and are either tossed to the side or put in a jar to be eventually traded in. In this day and
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In the novel Copper Sun the viewpoints were taken from a 15-year-old slave girl named Amari‚ and a 17-year-old indentured servant Polly‚ Copper Sun is a story of the struggles in the face of human beings during slave times and a hope for freedom against all odds and circumstances. In the novel the AOI that it is portrayed is the area of Health and social education. I chose this AOI because both Amari and Polly had to adapt to their new surroundings and they also had to learn the routes around the
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