Question

identify the key properties of seawater that make it unique.
key
properties
of
seawater
it is salty

it has a freezing point of 0°c

it is slightly acidic

it has a lower freezing point than fresh water

its density is slightly higher

objects tend to sink easier than fresh water

its electrical conductivity is much higher

it is slightly basic

← previous

Explanation:

• It is salty: Seawater contains dissolved salts like sodium chloride, which is a key characteristic.
• It has a lower freezing point than fresh water: Due to the presence of salts, seawater freezes at a lower temperature (around -2°C depending on salinity) compared to fresh water (0°C).
• Its density is slightly higher: The dissolved salts increase the mass per unit volume of seawater, making it denser than fresh water.
• Its electrical conductivity is much higher: The dissolved ions (from salts) in seawater allow it to conduct electricity better than fresh water.
• It is slightly basic: Seawater has a pH around 8.1, which is slightly basic.

Answer:

• It is salty
• It has a lower freezing point than fresh water
• Its density is slightly higher
• Its electrical conductivity is much higher
• It is slightly basic