Which of the following is true about hygroscopic substances
a. they have low vapor pressures
b. they remove moisture from the air
c. they can be used as drying agents
d. all of the above

Lewis structure and molecular geometry for nh2cl

What is the molar mass of ca(cio4)2

Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.