In this lab we took a dull penny from before the year 1970 and changed its color to a shiny gold with the help of chemistry. First, we used a vinegar and salt mixture and scrubbed it onto the penny. This process cleaned all of the dark corrosion spots away and made the copper color shine like new, which then allowed us to have a clean surface to experiment on. This was mostly a physical change but their was a slight chemical reaction because of the acidity of the vinegar. We then heated granular zinc and zinc chloride solution with the penny in a dish on a hot plate until it boiled.…
Alyssa Making Pennies Clean Pennies are shiny when their new, but after time they start to become dull. The one-cent coin was legal tender by the coinage act of 1864 (pennies.org). Abraham Lincoln is on the coin, and was put on the coin in 1909 (pennies.org). The penny was the first U.S. Cent to include the words “in God we trust” (pennies.org). Now how do they become dull and dingy?…
Argyria, or more commonly known as blue skin disorder, is a condition in which the skin turns purple of purple-grey in color. This is due to the acquisition of silver or silver compounds in the body. Generally this rare skin disorder only has cosmetic effects and is not a lethal condition. However argyria is mainly incurable and irreversible. There are two forms of argyria, generalized argyria and localized argyria.…
Wilson disease is a recessive inherited disorder. It occurs at birth, but symptoms of the disease do not appear till the ages of 6 through 40 and is caused by a large accumulation of copper in the body. An indication of the disease is a deep copper colored ring around the edge of cornea and the most common medical consequences of Wilson disease is liver disease because the liver is what eliminates the absorbed copper when we consume food and turns it into bile so the copper levels in our body remain leveled. When the copper is not eliminated by the liver and is accumulated in our bodies instead, it becomes life threatening to our body and begins to affect our entire system. Wilson Disease is a treatable disease, but has to be done at an early…
Are the serious health implications caused by hypoxia worth the emotional fulfilment of summiting at high altitude? In Jon Krakauer's Into Thin Air, the severely hypoxic climbers atop Mount Everest fall victim to a series of fatal mistakes that result in the tragic death of fifteen climbers in the spring of 1996. Serious health implications including AMS, HAPE, and HACE weigh heavily on a climbers decision to summit at high altitude despite the recent technological improvements in modern mountaineering. AMS, or acute mountain sickness, is a broad description of the myriad ailments that plague those who push themselves at high altitude. An important piece of information to be aware of is that "the common feature in all types of altitude illnesses is the onset of hypoxia, a deficiency in the amount of oxygen reaching the body's, particularly the brain, where there…
Hyponatremia is a condition that occurs when the level of sodium in your blood is abnormally low. Sodium is an electrolyte, and it helps regulate the amount of water that's in and around your cells. In hyponatremia, one or more factors — ranging from an underlying medical condition to drinking too much water during endurance sports — causes the sodium in your body to become diluted. When this happens, your body's water levels rise, and your cells begin to swell. This swelling can cause many health problems, from mild to…
Wilson Disease is also known as Hepatolendicular Degeneration. “Wilson Disease (WD) is an autosomal recessive disorder that results in accumulation of copper in the liver as a consequence of mutations in the gene encoding the copper- transporting P-Type ATPASE (ATP7B)” (Wooton-Kee et al.,2015). Wilson Disease is inherited and begins between the early mid ages, affecting very few people. This disease is not common and is a very rare disease.…
Do you know bodily kinesthetic means that the best way for the people who have bodily kinesthetic to learn is by moving? My dominant learning style is bodily kinesthetic which affects my learning because I am always moving. Bodily kinesthetic is the learning style of moving around. This defines me. According to the multiple learning handout it says, ”...ability to use one’s own body to create products or solve problems.…
As the body starts to get overheated, thermoreceptors in the skin send messages to the brain that the body is getting too hot. The hypothalamus in the brain then coordinates a response by sending signals to the sweat glands to initiate sweating. Simultaneously, a nerve message is sent to the blood vessels in the skin causing them to dilate. As a result of vasodilation, dilated blood vessels increase blood flow to the surface of the skin causing it to appear redder. The sweat droplets on the surface of the skin evaporate, cooling the skin and the blood flowing beneath it.…
Rachel Carson’s Silent Spring is an environmental science handbook whose concern is the environment and life on earth. The author uses her book to turn in to the harmful effects of pesticides on the environment. Rachel mainly handles DDT and pesticides administered to American environment through aerial spraying in attempts to control insect populations over large areas. This paper seeks to summarize Carson’s Silent Spring and capture its informative nature in a global perspective. The essay will also indicate the book's relevance to the chemical industry.…
Which metals produce similar flame colors (according to your naked eye)? NaCl and NaNo3 both turned the color orange. 2. What metal ions are in the unknown solutions A and B from the barrels on the vacant lot? Clearly, and in detail, explain your reasoning.…
It not only is a carcinogen, but a teratogen as well. Now a people plagued with war, fighting amongst themselves, and the united states was now poisoned as well with a substance that not only deforms and kills, but carries into their children, and their children 's children (Cohn). It is no surprise that the longest war in U.S history has also had the longest effect on those involved in it. The United States government is still in mistrust. Everything is classified now and those who catch a glimpse behind what is classified are either prosecuted or sworn to secrecy.…
Introduction The Placebo effect, sometimes referred to as “sham effect,” is an advantageous effect produced by a fake treatment. It focuses on the minds ability to trick itself by using the individual's belief in that treatment. If the individual believes that a treatment will work, it can begin to seem as if it is actually working, and or actually work. It is seen more often than one would think and is normally associated with placebo pills and shots. These placebos do not contain any beneficial medications or vitamins that could affect your health and typically contain things such as water or sugar.…
Today I will discuss how to handle a patient who is emphatic and believes in pseudoscience. I will also give you three examples of pseudoscience. Pseudoscience is a collection of beliefs, theories or practices that have been considered scientific, but have no scientific facts or evidence to support them, and can't be tested. Every patient is entitled to have their own belief. So the best way to handle this in a patient is to give them all options that they have to choose from.…
Experiment Summary The purpose of this experiment was to determine the copper content of brass using iodometry. This was accomplished by creating a thiosulfate solution and standardizing it by titrating using a known amount of KIO3. The second part of the experiment involved preparing a brass sample and allowing copper to react with excess iodide to form I2. The resulting I2 was then titrated with the thiosulfate standard.…