PRELIMINARY CHEMISTRY ASSESSMENT TASK 1. Identify the sources of pollution which accompany the combustion of organic compounds and explain how these can be avoided. Combustion refers to the burning of a substance in oxygen. It is a process in which a self-sustained chemical reaction occurs at temperatures above those of the surroundings. Combustion of organic compounds can result in detrimental impacts on the environment such as the generation of acids and production of carbon monoxide, particulates and soot.
The products of a combustion reaction are carbon dioxide and water. I also found out that it takes skill to light a match and that it’s difficult to keep gas where you want it to be without a sealed container. There are many sources of error. The first source of error was that if you blow on the candle too hard, the wax vapor blows away and the flame doesn’t jump. The next source of error is that if you don’t put in the limewater and stopper quickly enough, the carbon dioxide escapes and the water won’t turn chalky.
Power plants are the main resource for the burning of coal and oil. When they are burned it releases a substance called sulfur dioxide and can affect the environment including our live stock, plants, animals, the air that we breathe and our water sources. Recycling becomes more important on large scales. Used consumer goods are collected, converted back into raw materials and are remade into new consumer products. Examples of materials commonly recycled are, office paper, steel from old buildings, plastic containers and aluminum cans.
It is very corrosive and causes severe burns. It is very harmful by skin contact or by inhalation of dust. This cocktail together is used for getting into the ground and then it contributes to global climate change creating air pollution. They argue that fracking harms the environment and can hurt other living species such as bird, and fish. All of this is true; however, natural gas is a cleaner burning fuel and it has other advantages.
Sulfuric Acid is a strong acid that exists as a colorless oily corrosive liquid and is made by reacting sulfur trioxide with water. This is most commonly found in batteries, manufacture of fertilizers, explosives, detergents, dyes and other different chemicals. Sulfuric Acid is very dangerous to humans as it can cause respiratory tracts of humans and other animals while doing some major damage to plants that helps provide oxygen for us. Ground-level ozone is a secondary air pollutant formed when sunlight triggers reactions between nitrogen oxides and volatile hydrocarbons. If a human inhales ground-level ozone it can cause chest pain, throat irritation, and congestion.
Course # Student name / Names of members of group Date: Exp # : Estimating the effects of acid rain Introduction: Precipitation that measures a pH value below 5.6 is generally considered as acid rain. Burning fossil fuels is the main reason for the elevated levels of gaseous oxides in a polluted atmosphere that in-turn forms acid rain. Gaseous oxides such as that of carbon, sulfur, nitrogen and phosphorus could dissolve in water to form an acidic solution. A generalized reaction sequence on the formation of acid rain is as follows; One of the determinants of clean water in the natural environment is its alkalinity. Alkalinity can be defined as the capacity to neutralize acids.
C1.4.3 Hydrocarbon fuels Additional guidance: a) Most fuels, including coal, contain carbon and/or hydrogen and may also contain some sulfur. The gases released into the atmosphere when a fuel burns may include carbon dioxide, water (vapour), carbon monoxide, sulfur dioxide and oxides of nitrogen. Solid particles (particulates) may also be released. Candidates should be able to relate products of combustion to the elements present in compounds in the fuel and to the extent of combustion (whether complete or partial). No details of how the oxides of nitrogen are formed are required, other than the fact that they are formed at high temperatures.
In the graph it showed the excess uses of sulfur dioxide and nitrogen oxide which are primary causes of acid rain. Transportation, electric utilities, fuel combustion, and industrial sources of sulfur, and nitrogen emissions can be lowered by limiting the amount of fossil fuels being used. Energy Alternatives like wind power, solar power will be helpful to the environment. Referring to the speaker Car pooling or using different energies available to power automobiles would be
1b)Coal is a fossil fuel, which means when it is burnt it releases unwanted pollutants which have a negative and harmful impact on our environment. These pollutants are: Carbon Dioxide- This gas is considered to be the most harmful pollutant as it contributes to global warming. Coal is attributed to approximately 20% of the total pollution globally per year of all the fossil fuels. Sulfur emissions- when sulfur mixes with oxygen a harmful substance is formed. SO2, sulfur dioxide effects our trees and water systems and is the prominent cause of acid rain.
The use of chemicals in the hydrofracking process and the energy needed to operate the trucks and drills, critics say, offset the low carbon emissions from the burning of natural gas, making it no better than oil or coal. Furthermore, opponents contend, pollutants left behind at hydrofracking drilling sites could seep out from closed pipes and wells, posing a danger to public health for generations. Therefore, critics say, the federal government must step in to institute stricter regulations than the states have already