Describe two situations that reduce the dissolved oxygen content of water?

Why are the trends and exceptions to the trends in ionization energy observed?

Calculate the number of moles of ethane in 100 grams

8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm