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40 votes

Why is NaCl so hyper abundant in the ocean?

Solubility. The question is quite chemical, in fact. Solubility works somewhat counter-intuitively: if two ions that are not soluble together are present in the solution, they find each other and form ...
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46 votes
Accepted

Why is NaCl so hyper abundant in the ocean?

Fluoride salts tend to be not particularly soluble in water. Chloride salts are. The same goes for salts containing sodium versus those containing calcium. Sodium chloride is ridiculously easy to ...
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5 votes

What oxidised the soil on Mars?

The red color of Mars is due to hematite presence, Fe3+2O3, in the martian soil and atmospheric dust. The size and concentration of the hematite particles present in a layer determines its color. ...
0 votes

What oxidised the soil on Mars?

Volcanism+Water=Acid rain is the answer to this question. And now you all know where the free oxygen came from, it is from the acid. Mars is believed to have had a similar chemical composition as ...
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