5.00 g of Pb and 1.00 g of H2S to react according to the following reaction Pb(s) + H2S(aq) + PbS(s) + H2(g)
The theoretical yield of PbS is
5.77 g
6.40 g
7.02 g
12.79 g
none of the choices

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