5. 4NH3(g) + 5O2(g) →4NO (g) + 6H2O(g) Using the above equation, at STP, when 0.675 L of ammonia burns, what volume of water vapor will be formed?

14. many depressants reduce small muscle control, making it harder for a. you to steer b. your mind to consider complex problems c. the eye to scan, focus, or stay still d. the kidneys to filter alcohol out of the bloodstream

Match the mixture with the substance// i really need on this guys (it’s a pic btw)

The bond energy for the van der waals bond between two helium atoms is 7.9×10−4ev. assuming that the average kinetic energy of a helium atom is (3/2)kbt, at what temperature is the average kinetic energy equal to the bond energy between two helium atoms