Given the redox reaction in an electrochemical cell:

Ni(s) + Pb2+(aq) + Ni2+(aq) + Pb(s)

A salt bridge is used to connect

A) Ni(s) and Pb(s)

B) Pb2+(aq) and Ni2+(aq)

C) Ni(s) and Ni2+(aq)

D) Pb2+(aq) and Pb(s)

Please help me

Pb2+(aq) and Ni2+ B

Explanation:A salt bridge is a laboratory device used in an electrochemical cell  to connect the oxidation ( which occurs at the anode ) and reduction( which occurs at the cathode) half-cells of a galvanic cell voltaic cell, It prevents the cell from quickly  reaching equilibrium  by maintaining  electrical charge  neutrality within the internal circuit because the electrons are moving from one-half cell to the other.

In this electrochemical cell,  Ni (s) is oxidized to Ni2+(aq) and will occurs at the anode while  Pb2+(aq) is reduced to Pb (s) and will occur at the  cathode.

8

explanation:

each principal energy level above the first contains one s orbital and three p orbitals. a set of three p orbitals, called the p sublevel, can hold a maximum of six electrons. therefore, the second level can contain a maximum of eight electrons - that is, two in the s orbital and 6 in the three p orbitals.

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