A salt bridge _______.

Question

A. is made up of an aqueous ionic compound

B. has positive ions that are attracted to the cathode

C. has negative ions that are attracted to the anode

D. allows the reaction of the galvanic cell to continue

E. All of the Above

Answer 1

The answer is E. A salt bridge is composed of a soluble ionic compound. As the oxidation proceeds at the anode, the number of positive ions increases. The negative ions from the salt bridge migrate to the anode side to preserve electrical neutrality and complete the circuit. In a similar manner, positive ions from the salt bridge migrate to the cathode side to preserve electrical neutrality due to the decreased number of positive ions.