Ahollow spherical iron ball has a diameter of 15.3 cm and has a mass of 12.7 kg. assuming the whole inside the bar is spherical with the same center as the son of the ball, what is the thickness of the layer of iron surrounding the hole? the density of iron is 7.86 g/cm³.

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

65uuyhjghj8ykitdyidii