Why might different color paints react differently with the solvents used to remove varnish?

In which direction will the following reaction go if the standard reduction potentials are 0.80 v for ag/ag+ and –0.44 v for fe/fe2+? ag+ + fe → ag + fe2+ a.)forward b.)the reaction cannot occur. c.) not enough information is given. d.) reverse

Which electron configuration represents the electrons in an atom of sodium in the ground state at stp

The biosphere of the earth is made up of what compound? organic or inorganic?