The purpose of this lab was to change pennies from copper to silver to gold, like alchemists have attempted to do in history. Through the data and observations gathered throughout this experiment, it can be concluded that the pennies were not changed into a different element. For example, the density of the penny from 2005; which was the penny that was experimented on to see whether or not it could turn into silver; was 4.62 g/cm3 before the experiment and 4.89 g/cm3 by the end of the experiment. If this copper penny really would have turned into silver, then the density of the penny would be 10.49 g/cm3; which is the density of silver; by the end of the experiment. The penny may have turned silver in color, but this was only because it was plated in the zinc that was added to the beaker of water in the experiment. …show more content…
The density of the penny was 4.68 g/cm3 before the experiment and 4.43 g/cm3 at the end of the experiment. The density of gold, though, is 19.3 g/cm3. Since the densities of the penny and the gold are different, the penny clearly did not change into another element. The gold color of the penny was a result of the flame that it was held above melting the zinc that it was coated in with the original bronze colored coating of the penny, creating an alloy with a shiny yellow color. Since neither of the pennies, silver colored or gold, changed densities throughout the experiment and each retained their own properties; the properties of copper; no new elements were
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In almost every experiment, there’s an independent and dependent variable, a constant, and a control group. The independent variable in this lab was the coins. The dependent variable was the density. The constant was the amount of water. In this lab, there was no control group .
The penny has been used in many day to day scenarios and is recognized throughout history and even dates back to the Frankish Empire. However, many people see the penny as useless and not cost-effective. The reasoning behind this thinking is that the penny cost more to produce than its actual value, and they take up too much space and time. The cost of pennies is causing a lot of unwanted debt due to pricing for the materials.
Don’t you hate when your taxes go to making useless pennies or when they take up space in a mess. Even though people think pennies are helpful they are not because they cost 2.41 to make just one. For years the Unites States have been discussing if we should get rid of the penny. Pennies shouldn’t be made in the United States. Source 1 states, other countries have got rid of the penny and were successful.
That is why I am supporting the retirement of the pennies. With me supporting the retirement of the penny I have some evidence on why the penny should be retired. One piece I have is in the article it states that it costs 11 million dollars to make pennies in other countries. That it is a lot of money being used even though the penny doesn’t really get used, it just gets pushed to the side and never gets used. They could be doing more with the 11 million dollars.
Are pennies worth minting? Many people believe they’re a waste of money, but some people believe that they’re still worth minting. Pennies should not be minted for many reasons such as, the penny costs more money to make then the penny has in value. Another reason is that pennies are a severe waste in time such as people often pay with pennies as a practical joke, which means hard working employees often have to spend the time to count those pennies. The final reason is because the penny is losing the government money.
For many years people have been fighting to eliminate pennies for many reasons. One of the most popular reasons to eliminate pennies is that pennies cost more to produce than the actual worth of the penny. “The united States government lost $60.2 million on production and distribution of pennies in 2011,” (Sommer) wrote, source #1. (Sommer) also wrote that Each zinc and copper coin cost 2.41 cents to produce and distribute”. Meanwhile a penny is only worth 1 cent.
The penny costs more than it is worth. Millions of dollars are going to waste into producing them and it can just add the money up. The cost of producing and distributing one pennie is 2.4 cents(Sommer). Every penny that is made, taxpayers lose money.
Throughout the experiment, copper was altered a total of 5 times, but after the final chemical reaction, solid, elemental copper returned. Each time the solution changed color, a precipitate formed, or when gas appeared, indicated that a chemical reaction was occurring. For the first reaction, copper was added to nitric acid, forming the aqueous copper (II) nitrate (where the copper went), along with liquid water, and
Pennies are rarely made of copper anymore, but instead, mainly zinc. In his “Ban the Penny” article, Mark Lewis recognizes the penny argument and states “But the penny has its fans, especially in Tennessee, which is rich in zinc.” (Source A). Tennessee makes
The purpose of the lab is to acquire the percent composition of zinc and copper. The procedure included obtaining a post 1983 penny and washing it with soap and water. Using a triangular file, we made an X on the penny. Then, we cleaned the top and bottom of the penny with steel wool until it was shiny. We rinsed the penny in acetone and dried it with paper towel.
Growing up we have all heard that sound of useless coins jingling in a pocket. The majority of the time the change in the pocket is pennies, because nobody wants to use them. The pennies will either get stuck in the washing machine, or fall onto the grounds of the Earth, and no one will ever use them. Why?
The complete waste of time and money spent producing these pennies just to be forgotten in the couch cushions is astounding. If every penny is 1.8 cents to produce than the government is giving away 800 million USD every single year. The same article says, “...10 million new useless items punched out by government workers who could be more usefully employed tracking counterfeiters.” In other words, the government isn’t only wasting money on penny production but, also a working staff. U.S. currency could be more protected if it wasn’t for the pesky penny.
On our paper we predicted the amount of pennies that could fit in the boat before it sank. We tested the boat in the water and added pennies one by one. We then calculated the mass of pennies that fit in the boat and the density of it. The purpose of this Lab was to make a boat that holds as many pennies as possible and understand how to calculate