Nitrogen dioxide (NO2) .
Motor-vehicle exhaust contains 50% of nitrogen dioxide; heat and power generation; nitric acid; explosives; fertilizer plants, combustion.
How does acid rain form. Well, these oxides then, in the atmosphere react with water, oxygen and various chemicals to form their respective acids. The below chemical equations show it all.
SO2 + H2O --> H2SO3 or sulfur dioxide + water --> sulfurous acid.
SO3 + H2O --> H2SO4 or sulfur trioxide + water --> sulfuric acid.
CO2 + H2O --> H2CO3 or carbon dioxide + water --> carbonic acid.
4NO2 + 2H2O + O2 --> 4HNO3 or nitrogen dioxide + water + oxygen --> nitric acid.
After the mild solution of acid is formed, they precipitate and fall on earth. The below diagrams from http://ghs.gresham.k12.or.us/science/ps/sci/ibbio/ecology/notes/cycles/acidprecip.htm and http://encarta.msn.com/media_461535193_761578185_-1_1/Air_Pollution_and_Acid_Rain.html tell us everything. The diagrams are self-explanatory.
The basic brief steps of how acid rain forms is as follows:.
1. Industrial emissions and home appliances release acidic oxides like sulfur dioxide, nitrogen dioxide, carbon dioxide etc.
2. These acidic oxides then react with the water vapor and oxygen in the atmosphere and form their respective mild acids.
3. Pollutants may be carried in clouds for long distances before falling, which means that forests and lakes far away from factories may be damaged by acid rain.
4. Some particles do not mix with water and reaction and thus these fall on to the earth as dry rain.
5. The mixed particles precipitate. .
Why are people so worried about acid rain? What problems does it cause? Well, acid rain causes many, many problems. Acid rain affects biotic life, the ecosystem, the biosphere (the life in the environment), the hydrosphere (water cycle), man-made structures; basically everybody is affected by acid rain somehow.
The acids in acid rain react chemically with any object they contact.
"What is Acid Rain?" ... In simple terms, acid rain is rain that is more acidic than normal. ... When this occurs, the runoff water adds the new acids to the acid rain, making a more acidic combination than the falling rain by itself. ... Acid rain has been a big problem for a long time. ... Acid Rain also has a direct affect on everyone. ...
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Acid Rain and the Environment First off, what is acid rain? ... Acid rain looks and feels like regular rain. ... Taking a walk in acid rain, or even swimming in an acidic lake, will not harm us. ... Acid rain also affects the atmosphere. ... Acid rain also affects architecture. ...
Acid rain affects almost everything. ... When snow or rain comes the acid comes with it. ... Acid rain washes away nutrients in the soil. ... Agriculture is affected by acid rain in many ways. ... Snow and rain are highly acidic. ...
About 70% of acid rain comes from sulfur dioxide (SO2) which dissolves into water (H2O) to form sulfuric acid. ... Acid rain accelerates the rotting of building materials. ... Acid rain has two varieties of deposition: wet and dry. Wet deposition relates to acidic rain, fog and snow. ... When this happens, the wasted water adds to those acids to the acid rain, making the mixture more acidic than the falling rain alone. ...
Acid rain is the cause of all of this and much more. Acid rain is a widespread term used to describe all forms of acid precipitation rain, snow, hail, fog, etc. ... Rain (snow, fog, etc.) measured at a pH below 5.6 is considered acid rain. Acid rain is responsible for a widespread of environmental damage. ... There has already been plenty of damage done by acid rain. ...
Acid rain is rain that is polluted. ... Sulfur dioxide and nitrogen oxide are the gases that form the acid rain. ... Acid rain can also be harmful to humans because acid rain kills the crops and fish we eat, ruins homes, and the acid can release lead in the pipes and the lead could go into our drinking water. ... When acid rain falls from the sky it gets into the soil. ... It is the same thing with acid rain. ...
Acid rain is destroying the world=s lakes, air and ecosystem. ... Acid rain causes an ample deduction in the pH levels in the water. ... Acid rain causes traumatic effects in natural lakes and rivers. Acid rain causes air quality to deteriorate. ... Acid rain is becoming a major problem in our environment today. ...
