Word and Symbol equations Have a go at writing word and symbol equations for the reaction between metals and acids Ext:…
1) calculate the freezing point of a solution that contains 4.89g of glucose, a non electrolyte, dissolved in 111 g of water 2) If 5.31 g of ethylene glycol are added to 103.4g of water , what is the freezing point of the solution ( answer should be negative)
Treatment of biphenyl (C6H5-C6H5) with a mixture of nitric acid and sulfuric acid give two products. Show the reaction including…
Write an essay that explains the energy changes that occur during a chemical reaction. When is energy absorbed and when is it released? Explain what activation energy is and give some examples of sources for this energy. Explain the difference between exothermic and endothermic reactions. Give an example of each. Your essay should be at least […]
1) Some bacteria are able to harvest light of 1000 nm wavelength. A) What is the energy (in kilojoules) of a mole of 1000 nm photons? B) What is the maximum increase in redox potential that can be induced by a 1000 nm photon? C) What is the minimum number of 1000 nm photons needed […]
These are the instructions: go to cengage.com/owl click on general chemistry log on scroll all the way doen until you see General Chemistry, 10th Edition ; Ebbing, Gammon; ISBN: 978-1-111-58087-2 (also for Hybrid Edition, ISBN: 978-1-111-98947-7 and click on it click on the P at the top of the page and then click on pace university […]
Describe an incident (fire, spill, explosion, etc) you have experienced (or research one on the Internet, professional journal, or scientific magazine article) that involved a hazardous organic material(s) and required mitigation. Please do not use the instances supplied in the textbook unless you intend to provide a lot more detail. The following items must be […]
Elements in the same row have the same number of (*) levels Which elements in B O U L A N would be in the same family? Which would have the same number of energy levels? Highest mass? Lowest mass? Which is more reactive? Uranium or Lithium Will elements B and […]
Why do firefighters recommend the use of a deluging volume of water when extinguishing an oxidizer-supported fire? What may happen to a large (i.e., 30-50lb) container of trichloro-s-triazinetrione, or calcium hypochlorite, if it is left to sit in the water and muck remaining in a building after fire fighting efforts have ended, but clean-up will […]
In a combustion experiment, it was found that 12.096 g of hydrogen molecules combined with 96.000 g of hydrogen molecules…
