### Water as a Universal Solvent
Water is often referred to as the *universal solvent* because it can dissolve a
wide variety of substances more than any other liquid. This property makes it
essential for biological processes, chemical reactions, and environmental balance.
### Natural and Treated Water
* *Natural water* water is found in its original state in the environment,
without human interference.
* *Treated water* is water that has undergone purification or treatment to
remove impurities, making it safer and more suitable for drinking and domestic
use.
### Examples of Natural Water
1. *Rainwater* – Considered the purest form of natural water because it results
from the condensation of water vapor in the atmosphere. It is soft and lathers
easily with soap since it contains very few dissolved salts. However, in polluted
environments, rainwater may absorb harmful gases (like carbon dioxide, sulfur
dioxide, or nitrogen oxides), leading to *acid rain*.
2. *Well water* – Obtained by digging into the ground to reach underground
water sources. It often contains dissolved mineral salts and may require
treatment before drinking.
Water is often referred to as the *universal solvent* because it can dissolve a
wide variety of substances more than any other liquid. This property makes it
essential for biological processes, chemical reactions, and environmental balance.
### Natural and Treated Water
* *Natural water* water is found in its original state in the environment,
without human interference.
* *Treated water* is water that has undergone purification or treatment to
remove impurities, making it safer and more suitable for drinking and domestic
use.
### Examples of Natural Water
1. *Rainwater* – Considered the purest form of natural water because it results
from the condensation of water vapor in the atmosphere. It is soft and lathers
easily with soap since it contains very few dissolved salts. However, in polluted
environments, rainwater may absorb harmful gases (like carbon dioxide, sulfur
dioxide, or nitrogen oxides), leading to *acid rain*.
2. *Well water* – Obtained by digging into the ground to reach underground
water sources. It often contains dissolved mineral salts and may require
treatment before drinking.
