A liquid solvent is added to a flask containing an insoluble solid. The total volume of the solid and liquid together is 81.0 mL. The liquid solvent has a mass of 40.5 g and a density of 0.865 g/mL. Determine the mass of the solid given its density is 2.25 g/mL.

What does that mean you dum bum

  super sorry but i dont know lo

Ch4 and ph3 are both covalent since they are composed both of non-metals.    ch4 is non- polar because of  london forces and has a geometry of tetrahedral  ph3 , on the other hand, is umbrella shaped polar and has dipole-dipole intermolecular force (imf) . since ph3 is polar, it has a stronger imf