1. Which of the following are the products of a homolytic cleavage of a C-C bond of ethane? A) 2 B) CH3 CH3 C) H D) 2 + + CH3 CH2H3 CH3 Ans: A Chapter 11 Topic: Radicals Section: 11.1 Difficulty Level: Easy 2. Which of the following is the most stable radical? A) B) C) D) E) Ans: B Chapter 11 Topic: Radicals Section: 11.1 Difficulty Level: Easy 3. In the molecule shown below‚ determine which of the labeled bonds is
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Climate Change Awareness Between different Year Level and Gender Adalin‚ Edgar Jericho Almerol‚ Son Roy Decio‚ Louel Bernard Pascual‚ Ray Christopher Tonzo‚ Anjo John Abstract People are generally unaware of climate change. The government has put into action activities that will help raise awareness of this such as the “Earth Day”. This may provide information to most but‚ people in rural areas seem to be less educated on climate change than those in city areas who are most affected
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The End of Nature Book Review Introduction 1 a) When Bill McKibben originally wrote this book in the late 1980s‚ the two observations were that we tell time badly and that our sense of scale is awry. 1 b) Nothing at all has changed‚ but actually gotten worse. It has increased by 15%. 1 c) Three pieces of evidence that support global warming is that sea levels will rise‚ warmer seasons and a lot more hurricanes will come. 1 d) Everything we do involves fossil fuels and in order to
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The Greenhouse Effect The greenhouse effect‚ in environmental science‚ is a popular term for the effect that certain variable constituents of the Earth’s lower atmosphere have on surface temperatures. These gases--water vapor (H2O)‚ carbon dioxide (CO2)‚ and methane (CH4)--keep ground temperatures at a global average of about 15 degrees C (60 degrees F). Without them the average would be below the freezing point of H20. The gases have this effect because as incoming solar radiation strikes
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the United States. These are ground-level ozone‚ particulate matter‚ lead‚ sulfur dioxide‚ nitrogen oxides and carbon monoxide. While most people have heard of carbon monoxide‚ lead and particulate matter‚ they might be surprised to learn that the primary source of air pollution today is ground-level ozone. Unlike the natural ozone layer that surrounds the earth and helps regulate temperature by shielding it from the sun’s harmful rays‚ ground-level ozone occurs when nitrogen oxides mix with volatile
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and it influences our production methods and lifestyles. America produces more emissions then anywhere else in the world‚ yet this is still an international issue‚ also affecting Australia infinitely because of the air pollution in the world‚ our ozone layer is getting destroyed‚ the "blanket" that is protecting us is slowly yet surely making our Earth uninhabitable unless we do something about it. Air pollution is an issue locally‚ nationally and globally‚ we are all doing our part to increase
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Octane Rating Octane rating is a fuel’s ability to resist detonation and is classified by three main rating types. Octane rating is the measure of how resistant is gasoline and other fuels in the combustion engines to automatic ignition. It is the measure of a fuel’s burning characteristics. It is a standard measure of the performance of a motor or aviation fuel‚ the higher the octane number‚ the more compression the fuel can withstand before detonating. In broad terms‚ fuels with a higher octane
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over the past centuries. Climate changes have been caused by technological inventions. There has been an increase of carbon emission in the atmosphere since industrial revolution. The four key contributors of climate change are water vapor‚ methane‚ ozone and carbon dioxide. Some of the current trends that have proven existence of global warming include warming of the planet‚ rise of sea level‚ and natural calamities such as storm and floods (Archer 2011‚ 3). According to the report by Intergovernmental
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Factory pollution effects everyone and everything on this planet. Factories were the first form of pollution with the harsh chemicals that were used it destroyed much of the Ozone layer. Without the Ozone layer there will be nothing to stop the suns rays from heating the earth to outrageous temperatures(Wikipedia). According to McKibben‚ “not using the latest technology and so spewing: particulates into the air‚ or maybe sewage into water”
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emissions; water pollution from raw sewage; deforestation; smoke/haze from Indonesian forest fires Definition: This entry lists the most pressing and important environmental problems. The following terms and abbreviations are used throughout the entry: Acidification - the lowering of soil and water pH due to acid precipitation and deposition usually through precipitation; this process disrupts ecosystem nutrient flows and may kill freshwater fish and plants dependent on more neutral or alkaline
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