1. The starting motor transports 3.75 x 10 ^21 electrons from the automobile battery to start the engine. How many coulombs of charge have been transferred? a.487 C b.765 C c.600 C d.376 C.

2. What is the charge on a proton?

a. + 1.60 10-19 C b. 8.99 10^-9C

c. 1.60 10-19 C. d. +8.99 10-9 C.

3. How is the charge of the proton related to the charge of the electron?

a. The magnitudes of charge of the proton and the electron are equal, but the charge of the proton is positive, whereas the charge of the electron is negative.

B. The magnitudes of charge of the proton and the electron are unequal,

but the charge of the proton is negative, whereas the charge of the electron is positive.

C. The magnitudes of charge of the proton and the electron are equal,

but the charge of the proton is negative, whereas the charge of the electron is positive.

D. The magnitudes of charge of the proton and the electron are unequal, but the charge of the proton is positive,

whereas the charge of the electron is negative.

5. A certain atom contains contains 56 protons. How many electrons must it contain if its net charge is +5e?