Separate 200 mL and 400 mL solutions of salt have the same molarity. This means that

Where are the following questions

Afraidsugar lol it’s the third one

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