At stp, how many molecules of nitrogen gas are in 22.4 l?
a. 6.022 × 10^22
b. 6.022 × 10^23
c. 6.022 × 10^24
d. 6.022 × 10^25

During which time interval does the object travel approximately 10 meters

What does the mass of 0.7891 mol of ferric oxide (fe2o3)

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.