A gas bulb with volume 3.60 L is filled with 0.227 mol of Ar. It is connected by a valve to another gas bulb of unknown volume, which is filled with 0.144 mol of oxygen. After opening the valve, a total pressure of 1.08 atm is measured. The temperature is held at 20 0C during this process. What is the unknown volume (of the bulb originally filled with oxygen)

14. complete and balance the equations for the single displacement reactions. a. zn + pb(no3)2 -> b. al + niso4 -> 15. complete and balance the equations for the double displacement reactions. a. agno3(aq) + nacl(aq) -> b. mg(no3)2(aq) + koh(aq) -> 16. complete and balance the equations for the combustion reactions. a. __ ch4 + o2 -> b. __ c3h6 + o2 -> c. + o2 ->

2points what is the job of a scientist? a. to answer ethical questions. b. to write laws based on his or her knowledge. c. to ask and answer scientific questions. d. to ignore facts that do not support his or her theory.

Which of these best describes an ionic bond?