2NO + O2 = 2NO2 if 1.11 mol O2 reacts with excess NO, how many grams of NO2 should be
produced

Where are the following questions

The answers is a nuclear changes

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