Atoms of an element X have the ground-state electron configuration
1s22s22p6 3s2 3p4

What does the mass of 0.7891 mol of ferric oxide (fe2o3)

What kind of intermolecular forces act between a hydrogen fluoride molecule and a hydrogen peroxide molecule? note: if there is more than one type of intermolecular force that acts, be sure to list them all, with a comma between the name of each force.

Calculate the mass of 0.750 mol of the following substance. na3po4.