Amolecule of acetone in a molecule of propyl aldehyde are both made of 3 carbon atoms, 6 hydrogen atoms, and 1 oxygen atom. the molecules differ in their arrangement of atoms. how do the formulas for the two compounds compare

Exothermic,  physical change after it is already baked

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   

What do you need with it’s not a question your just stating what it says

The second and last option are the answers