In an electrochemical cell, the anode is
a. the electrode at which oxidation takes place.
b. the material used to connect the two half cells to each other. c. always used up before the cathode. never a metal.

Aneutron and a proton combine to form a nucleus. why does the mass of the nucleus differ from the sum of the masses of the individual nucleons?

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?

Balloon a has charge q, and identical mass balloon b has charge 10q. you hang them from threads near each other. choose all of the statements with which you agree. check all that apply. a. a and b exert the same magnitude forces on each other. b. the force that a exerts on b is 10 times the force that b exerts on a. c. the angle between the thread supporting a and the vertical is < the angle between the thread supporting b and the vertical. d. the force that a exerts on b is 1/10 the force that b exerts on a.