Which of the following conversion factors are needed to convert from um to km? Select all that apply. 10 dm = 1m
100 cm = 1 m
1,000 m = 1 km
1,000,000 yım = 1 m

Answer is to avoid experimental error

Butterfly wingspan is 7.7

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