What are the substances in acid rain, the main substances that cause acid rain

Acid rain mainly refers to the dissolved sulfuric acid and nitric acid in rainwater, which also contains a small amount of dissolved carbonic acid. Rain with pH is called acid rain.

1) Formation of sulfuric acid:

The combustion of sulfur-containing fossil fuels produces SO2: S + O2 = ignition = SO2

SO2 oxidation: 2SO2 + O2 = dust = 2SO3

SO3 is soluble in water: SO3 + H2O = H2SO4

2) Formation of nitric acid:

Automobile exhaust and N2 in the air will be oxidized into nitrogen oxides when discharged at high voltage (take NO as an example).

N2 + O2 = High Voltage Discharge = 2NO

No is easily oxidized in air: 2NO+O2 = 2NO2

NO2 dissolved in water: 3NO2 + H2O = 2HNO3 + NO

3) Formation of carbonic acid:

The combustion of fossil fuels, the respiration of living organisms to produce CO2 (take combustion as an example): C + O2 = ignition = CO2

CO2 is soluble in water: CO2 + H2O = reversible = H2CO3

Hazards]: Acid rain is known as the "Death in the Air", which has great harm to the environment, production, and human life, mainly manifested as:

1) Acid rain corrodes buildings, cultural relics and monuments.

2) Acid rain acidifies the soil and harms crop growth.

3) Acid rain pollutes water sources.

3) Acid rain is harmful to human health.

I chose A for studying chemistry, and I said very responsibly

Acid rain is mostly due to the combustion of fossil fuels

S H2SO4 S+O2 (ignition) SO2SO2+H2O H2SO3 (sulfurous acid).

2H2SO3+O2 2H2SO4 (sulfuric acid).

Total Chemical Reaction Equation:

S+O2 (ignition) SO2 2SO2+2H2O+O2 2H2SO4 Oxides of nitrogen dissolve in water to form acids:

Nitric acid) 2NO+O2 2NO2 3NO2+H2O 2HNO3+NOno total chemical reaction equation:

4no++2h2o+3o2＝4hno3

Total Chemical Reaction Equation:

4no2+2h2o+o2＝4hno3

Note: The number after the element is the foot mark, and the number before the chemical formula is the stoichiometric number. ）

Sulfurous acid: Equation SO2 + H2O==H2SO3 acidity.

3NO2+H2O=2HNO3+NOs are acidic and choose A

Mainly SO2

But CO2 also has an impact.

Acid gases such as sulphur dioxide.

Causes of acid rain.

The cause of acid rain is a complex atmospheric chemical and atmospheric physical phenomenon. Acid rain contains a variety of inorganic and organic acids, most of which are sulfuric acid and nitric acid. The sulfur dioxide emitted from the combustion of coal in industrial production and civil life, the nitrogen oxides emitted from the combustion of petroleum and automobile exhaust gas, go through the "rain formation process in the clouds", that is, the water vapor condenses on the condensation nuclei such as sulfate and nitrate, and the liquid phase oxidation reaction occurs, forming sulfuric acid raindrops and nitric acid raindrops; It also goes through the "cloud scouring process", that is, the acid-containing raindrops continue to merge and adsorb other acid-containing raindrops and acid-containing gases in the process of descending, forming larger raindrops, and finally landing on the ground, forming acid rain.

Acid rain in our country is sulfuric acid rain.

Hazards of acid rain.

Sulfur and nitrogen are nutrients. Weakly acidic precipitation dissolves minerals in the ground for plants to absorb. If the acid is too high and the pH level drops below it, it will cause serious harm.

It can directly cause large swaths of forests to die and crops to wither; It will also inhibit the decomposition of organic matter and nitrogen fixation in the soil, and leach away nutrients such as calcium, magnesium and potassium combined with soil ions, so as to impoverish the soil; It can also acidify lakes and rivers, and dissolve heavy metals in soil and water sediment into the water, poisoning fish; accelerate the process of corrosion and weathering of buildings and monuments; May be dangerous to human health.

Treatment measures The fundamental measure to control acid rain is to reduce the emission of sulphur dioxide and nitrogen oxides.

Sulfur oxides (sulfur dioxide, sulfur trioxide) and nitrogen oxides.

Sulfur dioxide, nitrogen dioxide.

Chlorine dioxide, nitrogen oxides.

It is the industrial production of SO2 and the water in the atmosphere that react into sulfurous acid! Sulfurous acid reacts with oxygen to form sulfuric acid and descends to form sulfuric acid rain! If nitrogen dioxide is the anhydride, it is nitric acid rain!

Mainly the air contains sulfur dioxide.

Nitrogen dioxide in automobile exhaust and sulfur dioxide in industrial exhaust combine with water vapor in the air.

Sulphur dioxide and nitrogen dioxide are lifted into the air, and under the catalyst in the air, sulfurous acid and nitrous acid are generated, and then acid rain is formed with water.

Sulphur dioxide, sulphur trioxide and nitrogen oxides.

Sulfur dioxide is the main thing in our country.

There are also parts of the area where nitrogen oxides are used.

Mainly from nitrogen oxide and sulfur dioxide.

The formation of acid rain is a complex change in atmospheric chemistry and atmospheric physics.

Sulfur dioxide and nitrogen dioxide.

Sulfur dioxide; Sulfur monoxide.

Sulfur dioxide and nitrogen dioxide.

Sulfur dioxide and sulfur trioxide.

Oxides of sulfur dioxide and nitrogen.