ASA

Why does the blood go from the lungs to pick up oxygen and then return back to the heart to be pumped around the body ? Why can't it just get out of the lungs from the first pump and then pick up an artery and go around of the body instead of returning ?

When the following solutions are mixed together, FeSO4 (aq) + Csl (aq): What is the balanced equation? What is the complete ionic equation? What is the net ionic equation? I don't know how to balance these problems, can someone please show me how to solve...