With The Fast Advancement Of Enterprises, Water Asset Shortage,

The more time the copper is left in the solution, the more time there will be for the cu2+ ions to be deposited.

The purpose of this lab was to determine the empirical formula of copper oxide compound. In the lab, hydrochloric acid and copper oxide compound was mixed until it formed a blue solution. An oxidation-reduction reaction, a reaction in which there is an exchange of electrons between elements, was performed by adding zinc to the solution to displace the copper in copper chloride. Zinc, in this case, was oxidized by losing two electrons (0 → 2+) while copper was reduced by gaining two electrons (2+ → 0). Also, when the copper was displaced, it became a precipitate, which is a substance that comes out of a solution as a solid due to insolubility.

When it comes to having a better life in another country many would take that chance. For they can live, work or help their families have a great future. When we talk about immigration now the topic has always been Mexican are taking our jobs, are rapes, or criminals. More than ever that subject has always a topic that will never die in American. Now more than ever for the president, we have in office and the truth is many do not know the backstory of many generations of Hispanics not just a specific race which is Mexicans.

The purpose of the experiment is to cycle solid copper through a series of five reactions. At different stages of the cycle, copper was present in different forms. First reaction involves reaction between the copper and nitric acid, and copper changed from elemental state to an aqueous. The second reaction converted the aqueous Cu2+ into the solid copper (2) hydroxide. In the third reaction Cu(OH)2 decomposed into copper 2 oxide and water when heated. When solid CuO reacted with sulfuric acid, the copper returned to solution as an ion (Cu2+). The cycle of reactions was completed with the reaction where elemental copper was regenerated by Zn and Cu

This experiment shows in detail how copper goes through different stages and exists in various compounds before being recycled back to its pure state. Each reaction associate with each step of the copper cycle was done in order to produce the next stage of the copper life cycle. The experiment also provided a good insight into how the reactions functioned by analyzing what each of the five reactions were: reduction, oxidation, acid-base, decomposition, or precipitation. The final amount of pure copper that recovered after the experiment was finished to determine the if the initial and final amounts were close by calculating percent recovered and relating that amount to supporting or refuting the Law of Conservation of Mass that applies to the Copper

The objective of this investigation was to determine the chemical formula of the hydrate copper (II) sulfate. 3.4g of hydrate was grinded to a fine powder and afterwards heated at a medium setting on a hot plate until colour change from blue to a light grey occurred. Subsequently the colour change had occurred the mass of the hot anhydrous salt was measured to weigh 2.1g. The mass of the water evaporated was calculated to be 1.3g. After all the data was collected the percentage of water evaporated was calculated to be approximately 38%. The accepted stoichiometric ratio between copper sulfate and water was 1:5.

Copper commonly occurs as a pollutant in surface fresh waters and it can be extremely toxic to fish , and so its removal is often necessary . There are several methods that exist in the actuality, such as adsorption on activated

In this Separation of Mixtures lab, the substances, carbon, copper chloride, and water were separated from each other from a mixture. The hypothesis for this lab was “If the separation technique, boiling, is used to separate copper chloride from water, then 95% of the copper chloride will be recovered because copper chloride, which is soluble in water, won 't evaporate with the water.” The hypothesis was not supported by this lab. Although the lab confirmed that filtering and evaporating were the correct means of separation to use on carbon, water, and copper chloride, the overall result was not

In this task the concentration of an unknown sample of copper sulphate using colorimetry was used to find the concentration. In this investigation copper sulphate was used which is CuSO4.5H20 as a formula. To make a standard solution which was 1M, the same clean equipment was used to make up the standard solution as used to make sodium carbonate. However there was one difference and that was that the hot distilled water was used to dissolve the copper sulphate crystals. There had to be enough hot water in order to dissolve the crystals into the beaker and then add cold distilled water to cool the solution.

Behind every great person in life, there lies a person who assisted them in achieving their greatness. In the novels Things Fall Apart by Chinua Achebe and Antigone by Sophocles, this idea is portrayed perfectly. The way that Achebe developed Ezinma throughout the novel, I believe, is what was used to show readers the softer and gentler side of Okonkwo. In conjunction with that, Sophocles used Ismene to be the more tame and obedient side of Antigone. Through the descriptions and ways that these two female characters affect the main characters in each of these novels, Ezinma from Things Fall Apart and Ismene from Antigone, it is apparent that they both value their families, but Ismene would choose the law over her family while Ezinma would

When the zinc was added to the copper (II) sulfate solution, the solution started to bubble. As the solution was stirred, it turned a cloudy blue. Small flecks of a brown solid were visible. As the solution became colorless, the brown solid settled to the bottom of the beaker. The solid formed was copper in its elemental state. The color faded from the solution as the copper ions slowly formed into solid copper. The copper was poured into a funnel with filter paper and washed three times with 25 mL

Water is a privilege. Living in the 21first century America, many individuals including myself have forgotten this. Many families all over the world are forced to walk miles for water just to find that it isn't even clean. Water shortage is a problem all over the world, but especially in poor countries like Africa. Because individuals all over the world have to get their water, my class did a water walk to understand their pains, but I would change it by making it longer, carrying more water, and having harsher conditions.

After the experiment, dispose all the Cu(II) solutions in inorganic waste jars and all the other solutions can be discarded in the sink with copious running water.

The question you’re asking me is “What is your vision for America?” Well, I have one big vision for America, but the real question is who can turn that vision into a reality? The answer to that is the American people who truly envision the idea becoming a reality. The most important vision to me would be for America to have peace all across the country. Sure, it’s a far fetched idea, but isn’t that what visions are supposed to be?

To ensure that the Animas River returns to its original state and the drainage from the Gold King Mine is cleaned up, we believe that a high density sludge process should be used. We believe the most effective high density sludge process is the health steele process. This process works by first mixing the sludge with lime in a tank so that the water can return to it’s original ph. Once the water reaches a safe ph for drinking, it reaches the lime reactor where air is added to ensure the water doesn’t change when exposed to air. Once the water leaves the lime reactor it is transported to the floc tank, where the remaining contaminated particles are removed from the drinking water. The final step is when the water reaches the clarifier and is sent back out to the river, as a healthy drinking water.