the dissolved salts also known as ions not sodium and chloride.
Three factors are evaporation and freezing of sea water.
Temperature, pressure, and common ion effect
The temperature of ocean water can be affected by the depth. The deeper it gets, the colder the temperature. The current also can affect the temperature of ocean water.
Temperature and Salinity
the higher the salinity the more easily an object can float
The temperature and salinity of seawater determine its density. Water gets denser as it gets saltier and reaches a maximum density at 4 °C. Salinity does affect the boiling point and freezing point of water, but not its temperature.
the temperature and the salinity
Three abiotic factors that affect the Gulf of Mexico are: Its salinity, it's dissolved oxygen content and finally the temperature of the water. All three of these will have an impact on the Gulf of Mexico.
The temperature and the salinity affect water's density.
Temperature & salinity.
The temperature and salinity of seawater determine its density. Water gets denser as it gets saltier and reaches a maximum density at 4 °C. Salinity does affect the boiling point and freezing point of water, but not its temperature.
Freezing point (more salt the lower the freezing point). Density (more salt, the heavier the water).