Consider the reaction. A(aq)↽−−⇀3b(aq)������c=6. 79×10−6at 500 k if a 1. 80 m sample of a is heated to 500 k , what is the concentration of b at equilibrium?.

The formula is (nh4)2co3

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   

Nonmetal are moldable and easily shaped