No, it is not always pure. In nature it is considered the purest form of water, which it is. However as it falls to the ground it mixes with a large number of impurities present in the air and hence becomes impure.
To produce rainwater, it first evaporates, only collecting pure water with nothing else, then it condenses into clouds, that are still made of pure water. When it becomes rain, it is still pure water, so it will not conduct electricity well. It's molecules carry no electric charge and there are no ions in solution to carry charges, so it would not be a good conductor.
I'm assuming the question to be as follows What is the purest form of water? The purest form of water would be where every molecule in the given container is 2 parts Hydrogen and one part Oxygen. Rainwater is considered one of the purest forms of water because it is essentially the process of distillation used in laboratories to generate high purity water. However, Rainwater does contain traces of minerals, dust, pollutants from the atmosphere etc., But for all practical purposes, Rainwater is one of the purest forms of water. However 100% pure water is close to impossible to create. Just the way 100% pure vaccum or 100% pure gold. There are bound to be contaminants at the most microscopic level. The contaminants are usually measured as ppm (Parts Per Million). The permissible limit varies from country to country depending upon the standards of living but 500 ppm or less of dissolved solids can be considered pretty pure.
If you let your tap water sit for a couple of hours, exposed to the air, the chlorination will evaporate, and you will have something equivalent to rainwater.
Water conservation is promoted through rainwater harvesting.
Rain water is fresh water and does not have salt. Saltwater is not fresh and does have salt.
yes its made of oxygen and hydrogen
No, rainwater would be pure water if it weren't for the contaminates is picks up from the air while falling.
Samples that are pure water include distilled water, rainwater, and water that has been filtered through a reverse osmosis system. These samples do not contain any dissolved minerals or impurities.
Both rainwater and distilled water are forms of pure water as they contain minimal impurities. Distilled water is water that has been boiled and condensed, removing impurities like minerals and contaminants. Rainwater, on the other hand, can pick up pollutants from the atmosphere as it falls but is generally considered pure unless contaminated by environmental factors.
Virtually none. Ever fresh rainwater or snow has dissolved impurities in it.
To produce rainwater, it first evaporates, only collecting pure water with nothing else, then it condenses into clouds, that are still made of pure water. When it becomes rain, it is still pure water, so it will not conduct electricity well. It's molecules carry no electric charge and there are no ions in solution to carry charges, so it would not be a good conductor.
Sea water is salty due to the presence of dissolved salts like sodium and chloride, while rainwater is relatively pure and contains very low concentrations of salts. Sea water also contains various minerals and trace elements, whereas rainwater is mostly composed of water molecules. Additionally, sea water has a higher density compared to rainwater.
Because rainwater, with the different chemicals and elements in it, is very slightly acidic.
No, rain water is almost pure water as it has evaporated and will only contain small dust particles from the atmosphere. Salt water contains disolved salt and is therfore more dense.
The pH value of unpolluted rainwater is typically around 5.6, which is slightly acidic due to the presence of carbon dioxide in the atmosphere.
Yes, rainwater typically has a pH slightly lower than 7, around 5.6-6.5 due to the absorption of carbon dioxide from the atmosphere. However, if rainwater is collected in a clean environment with minimal air pollution, its pH can be close to 7.
Sea water has higher boiling point,as it contains sodium chloride