Which of the following is a true statement about running water such as streams or rivers? A. they create interoceanic currents. B. They are effective agents of erosion.
C. They are more saline than seas or oceans.
D. They affect the pressure of the atmosphere

Butane gas reacts with oxygen gas to give carbon dioxide gas and water vapor (gas). if you mix butane and oxygen in the correct stoichiometric ratio, and if the total pressure of the mixture is 390 mmhg, what is the pressure (in mmhg) of water vapor after the reaction is completed (temperature and volume do not change).