How many moles of O2 needed to produce 11.5 grams of CO2? 1C5H12 + 8O2 --> 5CO2 + 6H2O

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   

Idon't know hope someone you

Nonmetal are moldable and easily shaped