What happens when light waves pass between two materials of different densities? options:

the light doesn't pass through the second material

the light bends

the light forms a hologram

the light is in a straight line

Where is the following?

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