What is the primary cause of lunar phases?

In which direction will the following reaction go if the standard reduction potentials are 0.80 v for ag/ag+ and –0.44 v for fe/fe2+? ag+ + fe → ag + fe2+ a.)forward b.)the reaction cannot occur. c.) not enough information is given. d.) reverse

Electric charge is what ? a. kinetic energy b. radiation c. discovery d. electricity

Agas can holds 2.0 gal of gasoline. what is this quantity in cubic centimeters?