Isº2s2p 3sº3p®45*3d"4p^5s*4d"5p
6s4f5d"6p

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

Which of the following has wavelength longer than the wavelength of viable light? a) x rays b) gamma rays c) radios waves d) ultraviolet waves

Which of the following changes will decrease the total amount of gaseous solute able to be dissolved in a liter of liquid water? (2 points) decreasing temperature decreasing pressure decreasing surface area decreasing solute concentration