This is for a study guide, i can't figure it out! you draw back on the piston of a pump and the volume of air in the pump doubles. which of the following happens? a. the number of collisions per unit area doubles. b. the temperature of the room doubles. c. half of the gas leaks out and the pressure is reduced. d. the number of collisions per unit area is reduced by one-half.,

Click the button that shows the correct relationship of the electron affinities of the elements sodium and phosphorus. sodium’s electron affinity value is more negative than the electron affinity value of phosphorus. phosphorus’ electron affinity value is more negative than the electron affinity value of sodium. this information cannot be determined using the periodic table. answer is b on e2020.