Which of the following interactions would not involve a dipole? A. Na+ and CCl4

B. HBr and Ca+2

C. NH3 and CO2

D. C2H5OH and F-

Explanation:

electron microscopy and scanning tunneling microscopes gives us a greater understanding of atoms by being able to see the atom itself, and lets us see some atomic reactions.

explanation:

answer

i think the answer is a) as air pressure in an area increases, the density of the gas particles in that area decreases.

hope it