Is there alkaline rain in the world?

Scientists call precipitation with a pH greater than "alkaline rain." In the 80s, Jilin, a famous chemical city in China, collected alkaline rain. The reason is that there is a synthetic ammonia fertilizer production complex in the city, which is poorly managed, and there is a considerable amount of ammonia that leaks into the atmosphere.

Ammonia is washed away by precipitation, forming alkaline rain. It occurs locally, in a certain period of time, and does not cause obvious disasters, so it is relatively easy to control. Therefore, from a disaster perspective, alkaline rain cannot be compared with acid rain.

But from a scientific point of view, the formation is the same, it is the result of precipitation washing away acids and alkalis at high altitudes.

Strictly speaking, rain is either sour or alkaline, and there is too little neutral.

Scientists call precipitation with a pH greater than "alkaline rain." In the 80s, Jilin, a famous chemical city in China, collected alkaline rain. The reason is that there is a synthetic ammonia fertilizer production complex in the city, which is poorly managed, and there is a considerable amount of ammonia that leaks into the atmosphere.

Ammonia is washed away by precipitation, forming alkaline rain. It occurs locally, in a certain period of time, and does not cause obvious disasters, so it is relatively easy to control. Therefore, from a disaster perspective, alkaline rain cannot be compared with acid rain.

But from a scientific point of view, the formation is the same, it is the result of precipitation washing away acids and alkalis at high altitudes. With the development of human industry, various pollutants have also joined the circulation of the earth's hydrosphere, and these pollutants combine with water in the atmosphere to produce alkaline rain and acid rain. Scientists call precipitation with a pH greater than"Alkaline rain".

In the 80s, Jilin, a famous chemical city in China, collected alkaline rain. Later, alkaline rain was found in Fujian, Xinjiang, Qinghai, Gansu and other provinces and regions.

There must be, a search on the Internet will be a lot.

(1) Because the pH of alkaline solution is greater than 7, and alkaline rain is alkaline, its pH is greater than 7;

2) The formation of acid rain is directly related to the production of sulfur dioxide from the combustion of sulfur-containing compounds in industry;

3) Ammonia gas will be generated by ammonium nitrogen fertilizer when exposed to alkali, which will reduce fertilizer efficiency, so ammonium nitrogen fertilizer cannot be mixed with alkaline substances to prevent fertilizer efficiency from decreasing;

So the answer is: (1) ; 2）so2；(3) It cannot be mixed with alkaline substances;

1) "Alkaline rain" is alkaline, and the solution pH is 7;Acid rain refers to rain at pH; In the correct rainwater, carbon dioxide is dissolved in the key branches due to the bright slag, so that its pH is less than that.

2) Hydroxide destroys calcium and sulfuric acid to react to produce calcium sulfate and water, and the equation of the reaction is: Ca(OH)2H2SO4

caso42h2

o So the answer is: (1) ; dissolves carbon dioxide in the air;

2）ca（oh）2h2so4

caso42h2o．

1)) "Alkaline rain" is alkaline, pH greater than 7 Therefore, fill: greater than 2) The combustion of a large number of fossil fuels, causing the continuous rise of carbon dioxide in the atmosphere Therefore, the combustion of a large number of fossil fuels

3) NH4Cl with Ca(OH)2

Co-thermal reaction to generate calcium chloride, water and carbon dioxide, so fill: 2NH4Cl + Ca(OH)2

cacl22nh3

2h2o．