Which best describes the work the student is doing?
She is following an experiment in a digital library.
She is speaking with a doctor in a digital telehealth call.
She is speaking with other students in a digital
classroom.
She is making observations in a digital laboratory.

Ithink the answer is 56.

C. chemical changeshope 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