what is the value of the equilibrium constant for the cell reaction below at 25°c? e°cell = 0.61 v 2 cr(s) 3 pb2 (aq) equilibrium reaction arrow 3 pb(s) 2 cr3 (aq)

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

Aball with a mass of 275 g is dropped from rest, hits the floor and rebounds upward. if the ball hits the floor with a speed of 2.40 m/s and rebounds with a speed of 1.70 m/s, determine the following. (a) magnitude of the change in the ball's momentum (let up be in the positive direction.)

Ain is , is 's of ? 0.62 0.79 1.27 1.50