"find the heat absorbed by the gas during this process."

Calculate the number of molecules present in 0.750 mol of mgo.

In the millikan oil drop experiment they determined that every drop had a charge which was a while number multiple of -1.60x10^-19. if a drop has a total charge of -9.60x10^-19 then how many excess electrons are contained within the drop?

Name the element in group 17, period 2. (periodic table)