Water as a Universal Solvent
(Paraphrased Version)
Water as a Universal Solvent
Water is commonly described as the *universal solvent* because it can dissolve more
substances than any other liquid. This unique ability makes it vital for living organisms,
chemical reactions, and maintaining environmental balance.
Natural and Treated Water
- *Natural water* refers to water in its original form in the environment, without human
modification.
- *Treated water* has been purified to remove impurities, making it safe and suitable for
drinking and domestic purposes.
Examples of Natural Water
1. *Rainwater* – Regarded as the cleanest type of natural water since it comes from
condensed atmospheric vapor. It is soft and lathers easily with soap due to its low salt
content. However, in polluted areas, it can absorb gases such as carbon dioxide, sulfur
dioxide, or nitrogen oxides, producing *acid rain*.
2. *Well water* – Sourced by digging into the ground to reach underground reserves. It
often contains dissolved minerals and may need treatment before consumption.
3. *Spring water* – Formed when rainwater seeps into porous soil layers and accumulates
above an impermeable layer. Some of this water flows naturally to the surface as springs.
Although it looks clear, it usually holds salts, dust, and microorganisms (bacteria, fungi,
protozoa), making it unsafe for direct drinking.
4. *River water* – Moves across land surfaces, collecting minerals, organic matter, and
sometimes industrial or household waste. It requires purification before drinking.
5. *Lake water* – Stored in natural depressions. Like river water, it often contains salts,
organic matter, and microorganisms.
6. *Sea water* – Contains a very high concentration of salts (mainly sodium chloride), which
makes it unfit for drinking.
Sources of Water
- Rain
- Springs
- Wells
(Paraphrased Version)
Water as a Universal Solvent
Water is commonly described as the *universal solvent* because it can dissolve more
substances than any other liquid. This unique ability makes it vital for living organisms,
chemical reactions, and maintaining environmental balance.
Natural and Treated Water
- *Natural water* refers to water in its original form in the environment, without human
modification.
- *Treated water* has been purified to remove impurities, making it safe and suitable for
drinking and domestic purposes.
Examples of Natural Water
1. *Rainwater* – Regarded as the cleanest type of natural water since it comes from
condensed atmospheric vapor. It is soft and lathers easily with soap due to its low salt
content. However, in polluted areas, it can absorb gases such as carbon dioxide, sulfur
dioxide, or nitrogen oxides, producing *acid rain*.
2. *Well water* – Sourced by digging into the ground to reach underground reserves. It
often contains dissolved minerals and may need treatment before consumption.
3. *Spring water* – Formed when rainwater seeps into porous soil layers and accumulates
above an impermeable layer. Some of this water flows naturally to the surface as springs.
Although it looks clear, it usually holds salts, dust, and microorganisms (bacteria, fungi,
protozoa), making it unsafe for direct drinking.
4. *River water* – Moves across land surfaces, collecting minerals, organic matter, and
sometimes industrial or household waste. It requires purification before drinking.
5. *Lake water* – Stored in natural depressions. Like river water, it often contains salts,
organic matter, and microorganisms.
6. *Sea water* – Contains a very high concentration of salts (mainly sodium chloride), which
makes it unfit for drinking.
Sources of Water
- Rain
- Springs
- Wells
