A system of three gases has a total pressure of 4.31 atmospheres. What is the partial pressure of argon if the P(o2) = 1.94 atm and p(n2)= 1.39 atm?

Which of the following represents the balanced reduction half-reaction from the redox reaction? (2 points) pb + pd(no3)2 yields pb(no3)2 + pd pb yields pd2+ + e- pd2+ + 2e- yields pd pb + e- yields pb 2 pd2+ + 4 e- yields 2 pd