Calculate ℰ° values for the galvanic cells described below. (a) Zn(s) + Ag+(aq) equilibrium reaction arrow Zn2+(aq) + Ag(s)
(b) IO3-(aq) + Fe2+(aq) equilibrium reaction arrow Fe3+(aq) + I2(aq)

Consider the following reaction at equilibrium: c(s)+h2o(g)⇌co(g)+h2(g) predict whether the reaction will shift left, shift right, or remain unchanged upon each of the following disturbances. a) c is added to the reaction mixture. b) h2ois condensed and removed from the reaction mixture c) co is added to the reaction mixture d) h2 is removed from the reaction mixture.