The half-reaction at the cathode in an electrochemical cell is given below. What other half-reaction would most likely occur at the anode to produce a
spontaneous reaction?
Zn2+(aq) + 2e —> Zn(s)

A. H2(g) —> 2H+(aq) + 2e-

B. Al(s) —> Al3+ (aq) + 3e-

C. K^+ (aq) + e^- —> K (s)

D. Zn (s) —> Zn2^+ (aq) + 2e-

If you add 5.00 ml of 0.100 m sodium hydroxide to 50.0 ml of acetate buffer that is 0.100 m in both acetic acid and sodium acetate, what is the ph of the resulting solution? acetic acid: ka = 1.8. x 10-5

40dm3 of gas at 760 torr are heated from 5°c to 50°c what is the new volume

Which of the following is an example of how telecommunication devices people do their jobs? a.) a security guard checks the time using a digital watch. b.) a banker does some quick math using a solar calculator. c.) a nurse uses a digital thermometer to take a patient’s temperature. d.) a construction worker reports in to his office using a cell phone.