A spectroscopy curve was produced of the acid and the absorbance of the unknown mineral could be obtained in order to find what that unknown copper is. Through these methods there is not preferred method when it comes to finding the percentage of an unknown substance, but which is more effective in accurately depicting what that unknown substance is. Standard deviation plays a major part in this experiment to help balance out and find the mean of the unknown substance to help constitute what it is. Through this the difference between smelting and roasting is that one produces a metal from its ore and the other drices off the carbon to obtain an
It is similar to other projects that include Pop Rocks. Once the candy dissolves the gas is released and the Pop Rocks react to whatever substance their
Introduction The purpose of this lab was to compare galvanizing and creating brass with pennies using weight change, mass change and observations. The independent variables are the types of pennies used. The dependent variables are the characteristics, change in pennies, and mass of the pennies.
I found Pollan 's book to be very informative and enjoyable to read. I particularly liked the fact that I could associate Pollan’s cultural, political and economic views to the topics we covered in class. In order to complete this assignment, I selected Part 1 of the book "Industrial Food" because I was particularly captivated by the secrets of corn and also because I believed that this section sincerely disclosed the reality behind High-Fructose Corn Syrup (a major participant in the development of obesity). Not only that but, the fact that corn is found in almost every product in our pantry, it’s a little frightening.
In the story “Tangerine” by Edward Bloor, Paul is characterized as an observant and introverted character who has the gift of knowing who a person really is. Even though Paul’s parents choose to be the ignorant people they are, they really don’t believe what Paul sees since they think that he’s visually impaired. According to page 63 of “Tangerine”, “You told them I’m handicapped! You told them I’m visually impaired!” Paul’s parents had told his teachers that h was visually impaired and now Coach Walski kicked Paul off the team for just that reason.
It was a late and rainy October night. Three kids at the age of 10 wanted to go on a journey to Ash Forest. They told their parents that they were having a sleepover that night. They left after the parents were asleep at 12:00am. When they arrived at Ash Forest, a loud whistling sound with strong wind came from the trees.
In the first part of this lab we will blow CO2 from our breath through a straw. When the gas comes in contact with the water it will slowly begin to acidify it.
As soon as the wire was submerged into the solution, the aluminum atoms and the copper (II) ions underwent a reduction-oxidation (redox) reaction, meaning aluminum was oxidized and donated its electrons to the copper ions, which were reduced. As a result, solid copper began to form on the surface of the aluminum wire, giving the wire a brown-orange color that resembled rust. The wire had to be regularly shaken in order to remove the solid copper particles and thereby expose more of the aluminum wire to react with the surrounding solution. As the reaction progressed, the liquid copper chloride solution slowly began to lose its color and turn clear. This was a chemical reaction, as seen by the bubbles formed with the wire was added, meaning gas was released when aluminum was oxidized and copper was reduced, but it also gave rise to physical changes, such as the change in color of the solution from blue-green to rusty orange to clear.
Ilyaas Farah 1711-60 1-31-16 Word count: 501 Sulfide Mining should be rejected Sulfide mining has a bad effect on both the economy and the environment. Sulfide mining is the process of removing copper, nickel, and other metals from sulfide ores. Minnesota 's traditional iron ore mining and sulfide mining are two very different types of mining. Sulfide mining has more environmental risks than Minnesota 's traditional iron ore mining. AMD (Acid Mine Drainage) is created from sulfuric acid.
Finally, on January 24, 1848, Marshall noticed something yellow and flaky in the riverbend one day, and he reached down to grab the mysterious yellow thing. His heart skipped a beat. He has found gold that is the same size as a pea, then he found another, and another, and another. Marshall then went to find Sutter to share his new discovery. Sutter was amazed with Marshalls finding, and to test if it was real gold, they put the gold in some acid to see if it either had an impact, which means fake, or no impact, which means real.
The holocaust was a horrible period in time, lasting from 1933 to 1945 and killing over 11 million people, 6 million being Jewish. With 20,000 concentration camps each serving a different purpose, whether it was a transit camp, forced labor camp or extermination camp. On July 16, 1937 the camp Buchenwald was established and set up to be a forced labor camp where the prisoners would build the place in which they stayed and the fence that went around the camp. Buchenwald prisoners included Jews, criminals, Jehovah witnesses, gypsies, and homosexuals. Buchenwald was one of the first and largest concentration camp on German soil with 130 sub camps.
5. Why Under Milk Wood was famous ? Nowadays we use high technology in many countries in the world. As the development of media begin, it is still continue until now.
Miners used chemicals, such as mercury, to extract the gold from quartz and stone. However, mercury is very hazardous and leaves behind toxic chemicals that threaten people today. The mercury can get in water sources and poison the people. Miners during the Gold Rush were never thinking about the
Apple states in their Form K-10 Report (2017, p.1) they are “committed to bringing the best user experience to its customers through innovative hardware, software and services.” In an Industry where profit margins are low, technologies are constantly evolving and competition is high it is essential that Apple continues to offer innovative and simple products that increases customer experience (Heracleous, 2013) so to maintain a competitive advantage. A variety of tools have been used to evaluate Apple’s external and internal environment, including the PESTEL (Appendix 1), Porter’s Five Forces Analysis (Appendix 2), SWOT (Appendix 3). It is envisaged that the information derived from these tools and the associated analysis will support Apple’s CEO to make strategic decisions that addresses the challenges ahead in the short term, ensuring Apple can be competitive in the long term (Rothaermal, 2017).
This technique causes the paper to stick to towards the plate and keeps materials passing under the paper during filtration. Before doing this
