Marked out of 100 – Weighting 20% Due Date – refer to StudyDesk All assignment submissions must be completed individually via EASE (http://ease.usq.edu.au/). Collusion and cheating is considered to be a very serious issue and all assignments will be closely monitored to ensure that all students are submitting their own work. This ensures that all students are treated fairly and graded on their own knowledge and work. It is acceptable to discuss course content with others to improve your understanding
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The Copper Cycle Alexes Montalvo Chem 1500-10 September 26‚ 2012 The Copper Cycle Introduction: The Copper Cycle is a popular experiment used to determine if an element‚ in this instance‚ copper‚ reverts to its elemental form after a chain of reactions. This experiment is very dangerous because of the reactions between the strong acids and bases. In this experiment I performed a series of reactions starting with
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Pennies were the first coin minted in the U.S ‚the first U.S penny is 223 years old. In recent years‚ there has been a heated debate about money in the United States. Surprisingly‚ it is about the pros and cons of producing and using pennies. In my opinion the penny should no longer be used and produced in America today. Here are some reasons why‚ pennies cost more than it’s worth‚ they are not big money‚ and are so close to worthless. ‘‘ Michael Cooper‚ an eighth grader
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Penny stocks trading is the first step to enter stock trading By Kent Wrotham Feb 7‚ 2012 Investing in penny stocks that have the potential to greatly increase their profits is the ideal way to enter stock trading. There are multitudinous things to contemplate when investing in global penny stocks. First‚ is the cost related‚ such as broker fees or commissions. Because in penny stocks‚ you may think that the cost of the investment is in miniature. Some brokers charge you more and get a great ability
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in the minting of pennies before and after 1982 by calculating their densities. Hypothesis If the penny was made after 1982 then its density will be higher than those made before 1982. Materials • 1 Graduated cylinder • 30 mL of water • 10 pennies minted before 1982 • 10 pennies minted after 1982 • 1 electric scale Procedure The mass of ten pennies minted before 1982 was calculated five times using the scale and then averaged. These steps were repeated with the pennies minted after 1982
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The penny has served as a trademark for America since 1793 and it has helped us succeed in many ways throughout American history. The U.S. continues to draw strength from its history and honored traditions. Therefore‚ preserving these traditions is vital to the continued greatness of our country. The U.S. should not abolish the penny because it is valuable to the economy‚ significant to society‚ and an important tradition to continue. Simply put‚ the penny is far too valuable economically and
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A COMPARISON OF ALUMINUM VS. COPPER AS USED IN ELECTRICAL EQUIPMENT Larry Pryor‚ P.E. – Sr. Specification Engineer‚ GE Consumer & Industrial Rick Schlobohm‚ P.E. – Sr. Specification Engineer‚ GE Consumer & Industrial Bill Brownell‚ P.E – Specification Engineer‚ GE Consumer & Industrial ABSTRACT The debate over the pros and cons of aluminum vs. copper conductors has been discussed for many years. Many of the concerns are based on old information and also misinformation. These concerns center on the
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Identification of a Copper Compound by Percent Mass Unknown Compound: #9 Abstract: The objective of this experiment was to identify the unknown pure copper salt compound of #9. To do this‚ the mass of copper in the unknown was calculated and then divided by the mass of the whole compound to get the percent copper. The molecular weight was also calculated by dividing mass of copper compound used by moles of compound in unknown sample. The percent copper averaged out to 31.6% while the molecular
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: The copper cycle IN TRODUCTION The purpose of the experiment is to recognize that change of state‚ change in colour‚ formation of a precipitate‚ or the evolution of heat are associated with a chemical change; to study reactions of copper. Copper is an element that can be found in nature in a variety of different compounds. The most common natural ore is the sulphide‚ known as chalcocite‚ Cu2S. This mineral is an important source of copper metal because it is about 80% copper by weight
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in the market than the copper cables. These cables are widely used in offices or residential areas. Copper cables transmit information through electrical signals. It has been used as a speaker system wire‚ telephone wire‚ computer cable wire etc. for over years now. Optical fiber comprises of plastic or glass strands to transmit data or information digitally with the use of light rather than electricity. On the other hand‚ copper cable encompasses of a single thread of copper. The size of the cable
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