Question

I.FILL IN THE BLANKS :
1.Oceans contain large amount of dissolved salts ---------- ​

Answer 1

Answer:

Explanation:

The most abundant dissolved ions in seawater are sodium, chloride, magnesium, sulfate and calcium. Its osmolarity is about 1000 mOsm/l.

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Chemical composition.

Element Percent by mass

Sodium 1.08

Magnesium 0.1292

Sulfur 0.091

Calcium 0.04