Question $10(3$ points$)$

For the following question, you need to show all of your work to get full marks.

$P{b}_{(aq)}^{2+}+2e^{-}P{b}_{(s)},E_r^0=-0\mathrm{.}13V$

$S{c}_{(aq)}^{3+}+3e^{-}S{c}_{(s)},E_r^0=-2\mathrm{.}02V$

a$)$ Write a balanced chemical equation for a spontaneous reaction involving these

half reactions. Need to show how this equation was obtained in order to get full

marks.

b$)$ Explain your rationale for the reaction going in this direction using calculations.