Rocks float when their density is lower than that of the surrounding medium. E.g. in water, pumice floats; in an alkaline magma, felspathoids might float; in a basaltic magma, plagioclase would float at pressures greater than about 5kbar (! feldspathoids and plagioclase aren't rocks, these are minerals).
Molten rock under the surface is called "magma". When magma reaches the surface it is called "lava".
This is called the magma chamber.
Magma is a type of molten rock underground. Hope this helps. :)
When cool magma sinks and warm magma rises, yes that is convection.
Rocks float when their density is lower than that of the surrounding medium. E.g. in water, pumice floats; in an alkaline magma, felspathoids might float; in a basaltic magma, plagioclase would float at pressures greater than about 5kbar (! feldspathoids and plagioclase aren't rocks, these are minerals).
yes toothpaste is an alkaline because the alkaline overpowers the acid in the toothpaste
yes it is alkaline
alkaline
alkaline
alkaline
Alkaline
alkaline.
alkaline
alkaline
alkaline
It is alkaline.