Calcium.
water
yes
yes
Sponges and cotton absorb the most water.
No, it is a mixture of a number of different compound. Water itself is a compound. Ocean water is not pure water though.
sodium chloride
Ocean water is a mixture.
Water absorb heat from sun. it releases heat into the air.
Dont let it obsorb water the could get too big!
No, it is the most common dissolved ion in the ocean. The most common element by mass is oxygen as the ocean is still mostly water.
calcium
The silver-white element found in ocean water is likely to be sodium. Sodium is a soft, silvery-white metal that is highly reactive and is a major element in the composition of seawater.