Copper(II) sulfate

Gold is widely used in modern day medicine to treat disorders. This is because gold is very resistant to bacteria. Bacteria are microscopic single-celled organisms. Bacteria are prokaryotes, meaning the entire organism consists of a single cell with a simple internal structure. The DNA of a prokaryote is neatly packed in the nucleus. The bacterial DNA floats freely in a twisted thread-like mass called the nucleoid. Gold is unaffected by almost everything. The only materials that can affect gold…

One of the earliest metals to be discovered, lead has a long history with mankind. It was first discovered around 7000 BC as a byproduct of silver smelting. Lead is metal known for its resistance against corrosion, malleability, and low melting point. Mined all across the world, lead was one of the most important metals in ancient times. Although lead was toxic, it was used widely, particularly in the Roman Empire. Through its uses and toxicity, lead affected the classical era in a drastic way.…

state; frequently too it occurs as an alloy containing gold, which is recognized, when the silver is dissolved in nitric acid, as the black sediment or oxide of gold. Arsenic and antimony are found also alloyed with it. Several of the ores of lead and copper contain silver. As silver is a precious metal often used for coins, its mining has historically often been lucrative. As with other precious metals such as gold, newly discovered deposits of silver ore have sparked silver rushes of miners…

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. We removed the penny with tongs and placed it in a beaker of water, immediately noticing the copper penny was now a bright, metallic…

A. Significance Copper is one of the most abundant transition metals in the human body and its redox characteristics make copper an important cofactor in many enzymes. Copper containing enzymes are important for tissue generation, synthesis of neurotransmitters, and catalysis of the electron transfer reactions.1 Because of its diverse functions, copper homeostasis deficiency is linked to many diseases. A prominent example is Wilson’s disease with a prevalence of approximately 1 case in 30,000…

The Goldfish- Prosopopeia I see my entire world in my line of vision. I cannot move beyond my borders of glass. A gigantic shadow approaches my bowl. The end most be coming soon for me. My world goes completely dark and I am removed from existence for a matter of moments. Food pellets rain down from the sky and I realize this shadow has just fed me. It begins to move away and I take a closer inspection of the landscape around me. I am place within a corner of a large square shaped room. The…

local hardware store to purchase a galvanized nail and small piece of copper wire. My grand total was very affordable at 20 cents. 1. One large orange 2. One 2-inch-long galvanized nail 3. 2-inch-long copper wire 4. String of holiday Christmas lights 5. Needle nose pliers Procedure To start this lab experiment, I gathered all the supplies needed and placed them onto my kitchen counter (see picture). First, I took the copper wire and stripped off the insulated coating with the pliers. Next, I…

This experiment is to be used to determine the era of which the composition and thus the density of the penny changed, and what the other metal besides copper has made up the composition since 1962. First, ten pennies from three different time periods (1995-1999, 2000-2004, 2005-present) were gathered. All ten pennies from a specific time were weighed together on an analytical balance. Then, a fifty mL graduated cylinder was filled with twenty mL of water, which was recorded as the initial…

The work I choose from the museum was a Bearded Bull’s Head from 2600 - 2450 BC. This was from the Sumerian, Early Dynastic III period. The bull’s head is made from copper with lapis lazuli and shell inlay which can be seen in the eyes of the bull. Since this was made from a valuable material it is thought to be used as a lintel over a door since it is too heavy for a piece of furniture. With the age of the object, it has pieces broken off of it such as the beard has only half left on. It’s not…

redox reactions, and an acid base reaction on a copper wire, called the Copper Cycle. The initial and final mass of the copper were measured and percent recovery was calculated to demonstrate that mass wasn’t created or destroyed. The balanced equations, balanced formula-unit equations, total ionic equations, net ionic equations, and half reaction equations were also determined for their appropriate reactions. In the first step of the cycle, a copper wire was dissolved by reacting it with 16 M…