16g of O2
14g of N2
8g of CH4
1g of H2
Assuming ideal conditions, which statement is true of these samples of gases?
A) They are listed in order of decreasing number of moles.
B) They are listed in order of increasing number of particles.
C) They all have the same volume at the same temperature and pressure.
D) They all have the same density at the same temperature and pressure.

An uncovered pot of water lies out in the sun. which statements correctly describe what happens at the surface of the liquid water? 1. the vapor pressure remains constant regardless of the water temperature. 2. the vapor pressure is produced by water molecules that have evaporated. 3. the vapor pressure increases as the sun heats the water in the pot. 4. evaporation stops once the vapor pressure reaches a certain point. 5. evaporation and condensation both occur on the liquid’s surface.