Exothermic

happen in the lab, but she would love to expand her experiences to the outside world. Right now she gets her kicks by pushing the limits of her work. The rush of adrenaline she gets from mixing unstable compounds or testing the restrictions of exothermic reactions is a true joy. If she loses an eyebrow or two during the process it’s all good. She’ll consider it a small sacrifice in the name of a good time and science! It goes without saying that Honey Lemon is extremely intelligent since…

After reading The Running Dream by Wendelin Van Draanen, I think that it would be a wonderful addition to the books available for literature circles and a great candidate for the competition. Along with having a great plot line with meaningful morals for the reader, The Running Dream is a awesome book for note taking; including many vocabulary words, figurative language and persuasive language on hand. The Running Dream presents a well thought out message to the reader through the view of…

able to undergo addition reactions due to the strength of their C-C -bond (60-65 kcal/mol) which is lower than the strength of a typical -bond (80-100 kcal/mol) between Carbon and other atoms. Adding a reagent across the double bond results in an exothermic reaction because one -bond is replaced by two higher energy -bonds. Accordingly, the addition of HBr(aq) to 1-Hexene involves the protonation of 1-hexene and is expected to produce a secondary carbocation, 2-bromohexane.…

then the energy is absorbed. The amount of heat that is released or absorbed will also be in units of Joules or Kilojoules per mol. There are two other terms to be familiar with, which are endothermic and exothermic. Endothermic is another way of referring to the absorption of energy and exothermic is the release of energy. For this experiment, you will be using a calorimeter. What is a calorimeter? A calorimeter is a device used to measure the amount of heat that is involved in a chemical…

Following WHMIS, it is vital that safety be a priority when conducting labs. Especially when handling chemicals, the ideal setup of labs should avoid any obstructions and potential hazards that may occur. This is due to the possible dangers: flammable and combustible chemicals (alcohol, sodium), oxidation (hair dye), bio hazardous products (which causes AIDS, rabies), toxic items (lead, benzene), poison (carbon monoxide), corrosive compounds (bleach), dangerously reactive chemicals (fluorine)…

1. Brief history of the company/factory ? In 1930, Dr. Minoru Shirota, who was conducting research in a microbiology lab at the Medical Faculty of Kyoto University in Japan. He succeed in culturing a strain of lactic acid bacteria beneficial to human health. This bacterium was named "Lactobacillus casei Shirota strain. It took Dr. Shirota another 5 years of research to find the right food medium for the Lactobacillus casei Shirota bacteria. In 1935 the first bottle of Yakult, a fermented…

White Vinegar, Flame or stove, Pot, Water, Ice, a few leaves of red cabbage, and safety goggles. Question: How does equilibrium work with respect to temperature and concentration? Hypothesis: Depending on whether the reaction is endo-thermic or exothermic the equilibrium will shift to one side, this is also true for increasing or decreasing pressure (which affects the concentration). Background: Henry Louis Le Chatelier was a renowned French chemist. Born on October 8, 1850, Henry was a…

In 1817 a scientist known by the name of Johann August Arfvedson discovered a new element called lithium while he was working with a mineral petalite (Jefferson Lab Web). However, even though this element was found by Arfvedson, William Thomas Brande and Sir Humphrey Davy were the first people to isolate it (Jefferson Lab Web). Lithium is very abundant, it is a soft silver white alkali metal with the atomic number of three. Lithium is silver and contains no odor (Element Project). In…

III. RESULTS AND DISCUSSIONS: A. Characteristics of Aluminum-Graphite composites and the in-situ reaction To examine the reaction condition of carbon flakes and Al powders, 4 wt. % carbon flakes were added to Al powders. Fig. 1 shows the DSC plot obtained during heating and cooling of the green compact from room temperature to 750 0C and from 750 0C to room temperature at a heating/cooling rate of 3 0C /min under argon gas atmosphere. From the DSC heating curve it is evident that the total…

If decomposition is sufficiently exothermic, a positive feedback loop is created producing thermal runaway and possibly an explosion. Many metal carbonates take part in thermal decomposition reactions. For example, copper carbonate breaks down easily when it is heated. Copper carbonate is…