How many moles of oxygen are in a 125 L container at 2.21 atm and 246 K? a) 22.4 mol
b) 12.4 mol
c) 150 mol
d) 5.5 x 10^3 mol

Which statement accurately describes the relationship between air pressure, air density, or altitude? as altitude increases, pressure increases. as altitude increases, air density increases. air pressure and density are lowest at sea level. denser air exerts more pressure than less dense air.

Drug abuse will not lead to physical and psychological dependence. true or false ?

Which of these is not an example of chemical weathering? a. iron-rich mineral rusting b. feldspar turning into clay c. limestone reacting with acid d. granite breaking up into sand