PA4 + 502 → P4010
How many grams of O2 will be produced from burning 50g of P4?

The metal is named first

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   

Answer/// he concludes that the atom particles can be broken due to the paddle wheel being moved by particles coming out of the metal;