Answer:
the deep sea floor. Known as the oceanic crust.
Explanation:
The deep seafloor (the oceanic crust) is made almost entirely of basaltic rocks, with peridotite underneath in the mantle. Basalts are also erupted above the Earth's great subduction zones, either in volcanic island arcs or along the edges of continents.
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It is insoluble. Because one of the substances are polar and the other is non-polar.
Covalent bonds form when electrons are shared between two nonmetals.
As you move from left to right across a period,the number of valence electrons<span>-increases. </span>