4. Which metals will be able to reduce copper ions in solution?

5. Will copper or lead be able to replace zinc ions in solution? Why?

6. Which metal will not be able to be oxidized by any of the other metals listed?

4. The metals that would be able to reduce copper ions in solution would be hydrogen (H), lead (Pb), tin (Sb), nickel (Ni), iron (Fe), zinc (Zn), aluminum (Al), Magnesium (Mg), sodium (Na), calcium (Ca), potassium (K), and lithium (Li).

5. If you had a house with both copper - and zinc-galvanized iron water pipes, zinc would be desirable because A metal that is easily oxidized would rust more readily.