What is the predominant intermolecular force in the liquid state of each of these compounds: ammonia (NH3NH3), carbon tetrafluoride (CF4CF4), and dichloromethane (CH2Cl2CH2Cl2)?

Silica, sio2, is formed on silicon as an electrically insulating layer for microelectronic devices. silica is formed when silicon is exposed to o2 gas at an elevated temperature. at 900˚c, it takes 90 minutes for the oxygen to diffuse from the surface to form a 0.06 micron (0.06 x 10-6 m) thick layer of sio2 on

20 pts ‼️ an unmanned spacecraft travels to mars. mars has a lower strength of gravity than earth. where in the image is the spacecraft’s weight the greatest?

What is a difference between a mixture of elements and a mixture of compounds