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Water is normally around a PH of 7. This is a very neutral Ph level. Neither acid nor base. Rain water has never been known to be at this PH. It normally sits around 5.6. The acidification is due to a chemical process between the CO2, which makes up 0.37% of our atmosphere and the water. This is the primary method of removal of CO2 from our atmosphere, contary to popular belief. Doubling CO2 in our atmosphere would change the PH level of our rain to a slightly lower PH. This is the natural balancing act of our atmosphere. Small changes in our atmosphere are automatically counteracted by nature. The problem we are concerned aboout is referred to as a tipping point.
If the area where rain is falling has high concentrations of certain pollutants in the air, it is possible to get a fairly acidic rain to fall. This is a fairly localized event and will diluyte fairly quickly if the rain falls for any period of time. The acid will be absorbed by the ground or go into the water table. Acid is not always bad in small quanities. This can be good for the ground and help fertilize it. Too much acid though kills off vegatation and hurts water life.
The lowest PH level I could find was 4.3 in Canada.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoif it is mixed with polutants then it will most likely becom acd rain
yes, I work at a wastewater treatment plant and after a heavy rain the pH in the basin drops (becomes more acidic)
Wiki User
∙ 14y agothe normal pH of rain water is about 5.6
Wiki User
∙ 16y agoit is
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Do all rocks react with rainwater at the same rate?
No. Rainwater is usually slightly acidic because of the carbon dioxide dissolved in it. Sometimes, it can be strongly acidic, if pollutants like sulphur dioxide and nitrogen dioxide are dissolved in it. Both weakly and strongly acidic rainwater react with some rocks, but only ones that are alkaline. Chalk is almost pure calcium carbonate and reacts fairly quickly with rainwater. Other rocks that contain calcium carbonate include limestone and marble and these react a little more slowly. But some rocks, like sandstone, are actually acidic and don't react with rainwater (though they are still physically weathered by rain). Granite also doesn't react with rainwater and it physically weathers much more slowly.
Is it true that air pollution from industry often causes rainwater to become acidic?
It is fairly common in some countries that air pollution causes acid rain.
Why rainwater is able to attack limestone?
because rain water is acidic in nature
Why do rocks get worn down by the rain?
Rocks can be gradually dissolved by naturally acidic rainwater.
Is rainwater in industrialized regions tends to be acidic chemical proprieties or physical proprieties?
Physical
Suggest why normal rain water is slightly acidic?
Normal rainwater has a pH of 5.6 (slightly acidic). This is because it is exposed to the carbon dioxide in the atmosphere. The carbon dioxide gets dissolved in the rainwater and forms carbonic acid (H{-2}CO{-3}).
Is normal rainwater an acid or a base?
Normal rain water is slightly acidic because contain carbon dioxide.
Is rainwater natrually acidic?
Yes, rainwater is naturally slightly acidic due to the presence of carbon dioxide in the atmosphere. Carbon dioxide mixes with rainwater to form carbonic acid, which lowers the pH of the rainwater. However, human activities, such as emissions from burning fossil fuels, can increase the acidity of rainwater to harmful levels, leading to acid rain.
Is rain acidic or alkaline?
Unpolluted rain should be neutral but many pollutants are acidic (oxides, dioxides and trioxides of Sulphur and Nitrogen in particular). These can become dissolved in rainwater it cause it to become acidic.
Why rainwater has a naturally acidic on limestone buildings?
As rainwater falls to earth, it absorbs pollution (natural and industrial) in the atmosphere which turns the rainwater slightly acidic. Limestone is affected by the acidity, and weathering and erosion is the result. The more pollution, the stronger the acidity, and the more damage is done to buildings and statues made from limestone.
Why does garden soil become acidic?
Garden soils will gradually become acidic as the rain that falls is slightly acidic and most fertilisers are also.
Normal rainwater is slightly acidic because water vapor combines with carbon dioxide in the atmosphere to form?
Carbonic acid yo
Calcium carbonate is insoluble in pure water why does it dissolve in rain water?
Because rainwater, with the different chemicals and elements in it, is very slightly acidic.
Why does rainwater weather away limestone buildings?
Because rainwater is mildly acidic. Acid in the rainwater dissolves the limestone.
What will be the color change if rainwater is dipped into a blue litmus paper?
as rain water is slightly acidic so will turn the blue litmus paper a little red.
Why rainwater is not acidic?
because it does not contain acid
Is rainwater acidic neutral or basic in california?
Rain water is generally acidic
