American Chemical Society and Global Climate Change Questions

American Chemical Society and Global Climate Change Questions ORDER NOW FOR CUSTOMIZED AND ORIGINAL ESSAY PAPERS ON American Chemical Society and Global Climate Change Questions Need help answering questions for my introduction to chemistry course. American Chemical Society and Global Climate Change Questions there is reading material and questions on the attached file please take a look at the attached file attachment_1 Let’s Explore Global Climate Change! What is it? What causes it? What are the impacts? What does Chemistry have to do with it? These are some of the questions that we will explore this week! American Chemical Society Position Statement on Global Climate Change The Earth’s climate is changing in response to increasing concentrations of greenhouse gases (GHGs) and particulate matter in the atmosphere, largely as the result of human activities. Chemistry is at the heart of understanding the climate system and integral to addressing the development and deployment of new emission reduction technologies and clean energy alternatives. The American Chemical Society (ACS) acknowledges that climate change is real, is serious and has been influenced by anthropogenic activity. Unmitigated climate change will lead to increases in extreme weather events and will cause significant sea level rise, causing property damage and population displacement. It also will continue to degrade ecosystems and natural resources, affecting food and water availability and human health, further burdening economies and societies. Continued uncontrolled GHG emissions will accelerate and compound the effects and risks of climate change well into the future. International cooperation will be crucial to addressing climate change, and continued U.S. participation in efforts such as the Paris Agreement is essential. Many solutions to reduce GHG and pollutant emissions are known and should be implemented through policy changes, partnerships, and education. These mitigation policies (e.g. GHG emission reduction) must be augmented by improved approaches for anticipating and adapting to adverse and unavoidable impacts of climate change. Risk reduction by proactive mitigation and adaptation strategies is preferred over global climate intervention schemes where the outcome is difficult to predict and beyond our power to control. Continuing to improve and strengthen our societies’ scientific understanding and literacy concerning all aspects of climate change is vitally important, enabling us to make informed decisions at national and international levels and helping us to lessen the future risk of climate change. Retrieved October, 2019 from https://www.acs.org/content/acs/en/policy/publicpolicies/sustainability/globalclimatechange.html In place of meeting face to face on Monday and Wednesday of this week, please complete the inquiry below! Please bring this and any resources to our next class for our continued exploration! Your Carbon Footprint Background Fossil fuels are naturally occurring deposits of organic matter that have formed over millions of years from decomposing plants and animals. Examples of fossil fuels include coal, petroleum (oil), and gasoline. Some have been used by humans for thousands of years; others have only been used for the past century. What is common in fossil fuels is that they are all used to produce some form of energy through combustion, and that their use has increased dramatically over the last 150 years. Some concerns about the use of fossil fuels has to do with one of the main products of combustion: carbon dioxide (CO2). Carbon dioxide is a greenhouse gas, which means that it absorbs radiant heat from the earth’s surface and prevents it from escaping into space. While some amount of greenhouse gases are needed to prevent the earth from getting too cold, too much can result in an increase in global temperatures. The International Panel on Climate Change (IPCC) has identified human use of fossil fuels as the main driving cause of global warming and climate change. We might not realize it, but many of our everyday activities directly or indirectly use fossil fuels and consequently produce CO2. In this activity, you will begin to expand your knowledge of chemical reactions to estimate of the amount of CO2 you produce each year; a quantity known as your “carbon footprint”. Introductory Questions ? What is a footprint? Why do we need to think about the “carbon footprints” we leave behind? ? What is a fossil fuel? Combustion: A combustion reaction is a major class of chemical reactions, commonly referred to as “burning.” Combustion usually occurs when a fossil fuel, which is a hydrocarbon (made of Carbon and Hydrogen atoms), reacts with Oxygen in the atmosphere to produce carbon dioxide (CO2) and water (H20) … Combustion doesn’t always result in fire, but when it does, a flame is a characteristic indicator of the chemical reaction. Examples of Combustion Reactions Here are several examples of balanced equations for combustion reactions. It’s important to remember that combustion reactions are easy to recognize because the products always contain carbon dioxide and water. In these examples, oxygen gas is present as a reactant, but trickier examples of the reaction exist where the oxygen comes from another reactant. Please note that the reactants are on the left side of the and the products are on the right side of the ! ? Example: combustion of methane reactants products CH4(g) + 2 O2(g) ? CO2(g) + 2 H2O(g) Examples: ? burning of naphthalene C10H8 + 12 O2 ? 10 CO2 + 4 H2O ? combustion of ethane 2 C2H6 + 7 O2 ? 4 CO2 + 6 H2O ? combustion of butane (commonly found in lighters) 2C4H10(g) +13O2(g) ? 8CO2(g) +10H2O(g) ? combustion of methanol (also known as wood alcohol) 2CH3OH(g) + 3O2(g) ? 2CO2(g) + 4H2O(g) ? combustion of propane (used in gas grills and fireplaces) 2C3H8(g) + 7O2(g) ? 6CO2(g) + 8H2O(g ? What are the reactants and products in a combustion reaction? Complete Versus Incomplete Combustion Combustion, like all chemical reactions, does not always proceed with 100% efficiency. It is prone to limiting reactants the same as other processes. So, there are two types of combustion you are likely to encounter: ? Complete Combustion – Also called “clean combustion”, clean combustion is oxidation of a hydrocarbon that produces only carbon dioxide and water. An example of clean combustion is burning of candle wax, where the heat from the wick vaporizes wax (a hydrocarbon), which reacts with oxygen in the air to release carbon dioxide and water. Ideally, all the wax burns so nothing remains once the candle is consumed. The water vapor and carbon dioxide dissipate into air. ? Incomplete Combustion – Also called “dirty combustion”, incomplete combustion is hydrocarbon oxidation that produces carbon monoxide and/or carbon (soot) in addition to carbon dioxide. An example of incomplete combustion would be burning coal, where a lot of soot and carbon monoxide is released. Many of the fossil fuels burn incompletely, releasing waste products. ? What type of combustion do you think has more of a negative impact on our environment, complete or incomplete combustion? Please cite evidence from text. And your rationale. Problem How much CO2 do you produce every year from normal, everyday activities? Main sources of greenhouse gases in the U.S. Please visit the EPA’s site about greenhouse gas emissions (https://www.epa.gov/ghgemissions/sources-greenhouse-gas-emissions). Use the information to answer the following questions: ? Who or what is responsible for the increase in greenhouse gases in the atmosphere over the last 150 years? ? What are the top 3 sources of greenhouse gases in the U.S.? Part 2: Fossil fuel use in Minnesota Use the graph below to answer the following questions: ? What are the top 3 fuels that are consumed (burned) in MN? List them below: ? What are these fuels used for? Do an internet search if you are not sure. Calculate Your Carbon Footprint: ? Please visit https://depts.washington.edu/i2sea/iscfc/fpcalc.php?version=full ? Either select “Register” or “Explore” ? Complete the questionnaire to calculate your carbon impact and bring results to our next class! What is the Impact of Climate Change on Human Health? Please visit https://health2016.globalchange.gov/ containing a 2016 report of the impact of global climate change on human health! Please select one of the chapters and scan the text! Please identify three (3) ideas that stand out to you and document why these are important to you! ? American Chemical Society and Global Climate Change Questions ? ? Get a 10 % discount on an order above $ 100 Use the following coupon code : NURSING10

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