How many molecules of hydrogen are in a balloon full of hydrogen with a volume of 5.34 liters at STP?

In a sample of oxygen gas at room temperature, the average kinetic energy of all the balls stays constant. which postulate of kinetic molecular theory best explains how this is possible?

Which electron configuration represents the electrons in an atom of sodium in the ground state at stp

Many pharmaceutical drugs are organic compounds that were originally synthesized in the laboratory. which two scientific disciplines are bridged by pharmaceutical drugs? chemistry and forensics chemistry and medicine biology and forensics biology and criminology