How many moles of water are present in 7.50 x 10^22 molecules of H,0?

How many moles of magnesium is 3.01 x10^22 atoms of magnesium?

Amixture that has two or more substances that are spread out evenly is called a. compound b. heterogeneous c. substance d. homogeneous

Which process transfers heat from inside earth to its surface? convection currents in mantle pulling away of tectonic plates drawing in of tectonic plates convection currents in crust