g A gas mixture consists of Cl2, O2, and Rn, where the mole fraction of Cl2 is 0.55 and the mole fraction of Rn is 0.25. If the mixture is at STP in a 5.0 L container, how many molecules of O2 are present

Individuals within populations exhibit some diversity. as a result of possessing slightly different traits, some individuals are better able to survive and reproduce than others. if these individuals changes in the characteristics of the population may occur over time. the cumulative change in these characteristics is known as