Four different solutions are placed in separate beakers,and a copper metal strip is added to each. Which solution will turn blue after some time?

Which statement is incorrect for a galvanic cell?

When a lead storage battery is charged,it acts as a:

In the button cells widely used in watches and other devices,the following reaction takes place:
$Zn_{(s)} + Ag_2O_{(s)} + H_2O_{(l)} \rightarrow Zn^{2+}_{(aq)} + 2Ag_{(s)} + 2OH^{-}_{(aq)}$
Determine $\Delta_r G^\Theta$ and $E^\Theta$ for the reaction.

The reaction $\frac{1}{2} H_{2(g)} + AgCl_{(s)} \rightarrow H^+_{(aq)} + Cl^-_{(aq)} + Ag_{(s)}$ occurs in which of the following galvanic cells?

How do the ions transfer between solutions in an electrochemical cell?