What is the mass, in grams, of a sample of 6.98 × 1024 atoms of magnesium (mg)?

Which of the following mining methods disrupts the sea floor?

1) these are barrel shaped microtubules in most animal cells, that organize the spindles during cell division

Agas is contained in a thick walled balloon when the pressure changes from 1.21 atm to 2.52 the volume changes from 3.75 l to 1.72 l and the temperature change from 293k to blank k