For example chlorine from submarine volcanoes, to form sodium chloride.
Volcanoes add various salts to seawater, primarily including sodium, potassium, calcium, magnesium, and chloride ions. These salts are released into the ocean through volcanic eruptions, where gases and ash interact with seawater, or through hydrothermal vents on the ocean floor. The high temperatures and pressures associated with volcanic activity can also lead to the leaching of minerals from surrounding rocks, further contributing to the salinity of seawater.
Precipitation, land water runoff and the melting of icebergs do not add salts to seawater.
Storms at sea. The evaporated water falls back into the ocean with no net effect on salinity.
Dissolved salts are transported by the rivers.
Minor organic salts make up less than 1% of the composition of seawater.
Seawater is hypertonic to drinking water. This means that seawater has a higher concentration of solutes (such as salts) compared to drinking water. Drinking seawater can lead to dehydration as the body would need to excrete more water to get rid of the excess salts.
Seawater is denser than freshwater because it contains dissolved salts and minerals, such as sodium and chloride, which add weight to the water molecules. These dissolved substances increase the overall mass of seawater and make it denser than freshwater.
Desalination. Desalination is the process of removing salts and minerals from seawater to make it suitable for consumption or agricultural use.
The average salinity of seawater is about 35 grams of dissolved salts per kilogram of seawater, or 3.5% by weight.
5 grams
yes
1. The most important part of the sodium and chlorine are dissolved from the earth salts and transported by rivers in seas/oceans.2. A small part of chlorine is originated from the eruptions of submarine volcanoes.