What are the three parts of sound? (Select all that apply.) the identification of pitch

the detection of sound

the transfer of energy through a medium

the energy source

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   

Answerhund's rule;

Answer/nitrogen compounds in the soil;