Essay Database

… by reacting copper(II) oxide with dilute sulphuric acid. The resulting copper(II) sulphate solution when cooled can easily crystallize, so the amount of the product can be accurately measured. This lab result can then be compared to the theoretical…

… Introduction: <Tab/>Copper (II) sulphate can be prepared by reacting copper (II) oxide with dilute sulphuric acid. The resulting copper (II) sulphate solution can then be crystallized, so that a quantitative analysis may be made…

… Nobel moved with his family to St. Petersburg, then the capital of Russia, at the age of nine. There his energetic and inventive father soon acquired a strong and respected position as an inventor and industrialist. Nobel subsequently lived in several…

… concern of global importance. Acid Rain is rain with pH values less that 5.6. The acid consists of sulfur and nitrogen compounds that are produced naturally by the decay of organic matter in swamps, wetlands, intertidal areas, and shallow waters…

… was born on March 14th, 1879 in Württemberg, Germany. In 1886, he started school. Later that year he started violin lessons. He continued with them for 7 years. In high school, he studies science as much as he can. His family moves to…

… estimate of 5000 years. The special technique that was discovered was actually an accident involving barley being soaked in the rain, spontaneously fermented, flavoured with honey and dates, and it was drunk from jugs with straws. This accident was…

… of what is in milk and other dairy products. Most people think that you need calcium in you body, so you have to drink milk and dairy products. Well, whoever seriously thinks like this should get some extra research done, because calcium is used almost…

… cars grows. However most of the world's population already has CO2 emitting gas powered cars. Will electric powered cars ever be more popular than gas powered cars? Electric vehicles are clean, noiseless, light, however they lack power. Gas vehicles…

… peroxide Please refer to the additional files for tables/graphs. Aim- The purpose of this investigation is to investigate how certain factors affect the catalytic decomposition of Hydrogen peroxide. I will investigate the effect of altering…

… and osteoarthritis who has recently been exhibiting quite unusual behaviour. Her daughter is concerned about her mother's ability to remain independent and wishes to pursue nursing home admission arrangements. She fears the development of a dementing…