Chemistry help. I need help with an assignment due in 20 minutes.

Classify each statement about effective nuclear charge, zeff, as true or false.

24. a sports ball is inflated to an internal pressure of 1.85 atm at room temperature (25 °c). if the ball is then played with outside where the temperature is 7.5 °c, what will be the new pressure of the ball? assume the ball does not change in volume nor does any air leak from the ball a) 0.555 atm b) 1.74 atm c) 1.85 atm d) 1.97 atm

Measurements that have similar values are: a. usually accurate b. sometimes accurate c. always accurate d. never accurate