(A) 144.73 kJ
(B) 144.73 J
(C) −144.73 J
(D) −144.73 kJ
10 . Assign oxidation numbers to each atom of the following reaction equation:
2Fe (s) + O 2 (g) + 2H 2 O (l) → 2Fe(OH) 2 (s)
11 . Using the ion-electron method, balance the following equation of a reaction taking place
in an acidic solution:
ClO 3 − + AsO 2 − → AsO 4 3− + Cl−
12 . Given the standard reduction potentials for the following half-reactions,
ClO 4 − (aq) + 2H+ (aq) + 2e− → ClO 3 − (aq) + H 2 O (l)
predict which half-reaction would occur at the anode and which would occur at the
cathode in a galvanic cell.