using the reactivity series in figures 8-14 and 8-15, predict whether the following reactions are possible. a. Ba (s) 2HOH ---------> Ba(OH)2 (aq) H2 (g) b. Ba (s) 2HOH (l) -----> BaCl2 (aq) Sn (s) c. I2 (aq) MgCl2 (aq) ------> Cl2 (aq) MgI2 (aq)