Copper sulphate

a semiconductor. Photoluminescence intensity may be directly correlated with the defect density in a fluorescent material. However, the CuO has low emission efficiency (CuO is not a fluorescent material) so there is a lack of luminescence data for copper oxide. Furthermore, recent theoretical calculations indicate that although Cu vacancies are the most stable defects in CuO, they do not introduce new states within the

2H2O(l) Before Copper is a reddish brown powdery and lustrous substance. HNO3(aq) is colorless and transparent liquid. During Adding HNO3(aq) made the solid copper change color and state of matter. The solid brown copper turned into a green liquid. Bubbles formed at the surface of the solution and a yellow-brown gas was released. The beaker became warmer and the temperature of the solution increased. After The substance turned into a clear and non-viscous blue liquid as the copper dissolved completely

We observed the combination reaction between zinc and iodine in a balanced chemical equation to help us understand the troubles and process of getting a pure product (zinc iodide). Then we performed the decomposition of zinc iodide by electrolysis. After observing the properties of the substances we can then confirm whether or not zinc and iodine are present in the original compound. Overall, we set out to prove that the Law of Conservation of Mass is held true in a balanced reaction. We began

plumbing was found in Mesopotamia it is estimated to have been made around 3000 BC. The pipes were made from clay mixed with short lengths of straw. This was the first type of pipe to be used to transport water from different places. Both brass and copper pipes have been found in Egypt believed to have been constructed close to 2500 BC. The Romans used lead pipes, extensive use of lead pipe by joining sheets of lead into piping to carry their water supply and waste. Two millennia ago the ancient Romans

In Plato’s The Republic, Plato uses a central story, the myth of the three metals, to illustrate his ideas as a whole. The myth of the three metals is based off of the story that Mother Nature invented all human beings and created these human beings by utilizing different metals. The three metals utilized were gold, silver, iron or bronze. From these metals, each person was born into the role they would presume in society. Gold represents the guardians, who are governed by reason, making them

CHAPTER TWO LITERATURE REVIEW 2.1 Water pollution FAO (1992) noted that the adulteration of water supplies from both natural and anthropogenic sources has impacted on the health and economic status of populations. Human activities contribute to pollutants such as heavy metals, pesticides and herbicides into aquatic ecosystems. These anthropogenic activities continuously increase the amounts in the environment. According to Malik et al. (2010), heavy metal pollution is burgeoning at an frightening

sounds of drilling and being told the fish were too dangerous to eat. This is only one of many potential harms of sulfide mining. PolyMet, a new mining company would like to bring sulfide mining, also known as copper-nickel mining to Minnesota. This would involve the extraction of copper and various other metals from sulfide, hence the name. The sulfide that comes out of this type of mining can have serious consequences on the environment. Events that occurred in the past and facts mentioned in

Spanish government. With footprint on 40,000 countries, Rio Tinto employs about 66,000 people across six continents. Rio Tinto has strong presence in Australia with its Australian headquarters located at Melbourne. Their main products are gold, silver, copper, aluminium, iron ore, industrial minerals, thermal and metallurgical coal and uranium. Legitimacy Legitimacy theory advocates that any business has to comply with a social contract as per which the firm performs various activities and actions that

This article pertains to an animal experiment observing the effects of zinc supplementation on diabetic mice. The researchers compared homozygous diabetic (db/db) mice to heterozygous lean (db/m) controls, and divided the two into groups with various zinc intake levels. Six weeks later, postmortem examinations collected blood samples and measured serum glucose levels, as well as urine glucose levels. Furthermore, at a more molecular level, they also examined factors such as insulin receptor concentration

Electrolysis of copper sulfate has great importance in the mining industry as it is a better metal extraction process compared to simply mining the ore from the rocks. This is because electrolysis refines copper so that the copper is high quality and removes the impurities of it. This is particularly important for the copper to be used in industrial processes. (1) Copper is used in industry to make electrical wiring and components due to copper being a very good conductor of electricity. Electrolysis