examine the three dimensional structures of each of the following molecules in the simulation, which can be found in the real molecules mode. then, identify which molecules are polar and which are nonpolar. assume that every bond in each molecule is polar covalent. it may be easier to visualize if you uncheck the box labeled show lone pairs.

Ithink 2 is the correct

The independent variable is the type of music.the dependent variable is the pulse rate.the intervening variable is the age of the subject.if the mother does not like rock, her pulse is likely to not increase.the same might be true for the sister.the friend may like rap and gets excited.to establish cause/effect relationship, all of the subjects must be consistent.hope i .

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   

Do you have any options?