compound weighs 43.85g and contains only carbon and hydrogen. Analysis shows it contains 38.94g of carbon and 4.91g of hydrogen. Find its empirical formula.

C. control over the business

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   

Idont really know sorry