A sample of 4.25 moles of hydrogen at 20.0oC occupies a volume of 25.0 L. Under what pressure is this sample?
(with explanation pls)

This image is an example of a(n) a) atom. b) compound. c) mixture. d) molecule.

Why do cells appear different in distilled water than they do in 10% salt water?

Ammonia and oxygen react to form nitrogen monoxide and water, like this: 4nh3 (g) + 5o2 (g) → 4no (g) + 6h2o (g) also, a chemist finds that at a certain temperature the equilibrium mixture of ammonia, oxygen, nitrogen monoxide, and water has the following composition: compound pressure at equilibrium nh3 65.1atm o2 31.3atm no 62.7atm h2o 65.8atm compound pressure at equilibrium nh3 65.3 atm o2 7.79 atm no 12.1 atm h2o 65.8 atm calculate the value of the equilibrium constant kp for this reaction. round your answer to 2 significant