Part D Follow these steps to complete the table.

Reuse the same test tubes from part C, labeled Fe2+ and Fe3+. Be sure they’re clean.
Add 4 milliliters of iron(II) sulfate to the test tube labeled Fe2+.
Add 4 milliliters of iron(III) nitrate to the test tube labeled Fe3+.
Add 4 milliliters of sodium hydroxide to each test tube.
Observe the contents of the test tubes for about 10 minutes. Record your observations, noting any evidence of a chemical reaction. If there is no evidence of a reaction, write “no reaction.”