A kitchen worker at a local hospital was filling salt shakers. For those patients on a sodium restricted diet due to high blood pressure. the hospital provided a salt
substitute containing potassium chloride instead of sodium chloride. Unfortunately, the
hospital worker mixed some of ythe containers up. How could the contents of the containers

The activity series is shown in the attached picture. if the element is below the other, then you can displace the other. following the activity series as a guide, the reactions are as follows: nickel and aluminum chloride3 ni + 2 alcl₃  → 3 nicl₂ + 2 albarium and copper bromideba + cubr  →  no reaction because cu is less oxidizable than bapotassium nitrate and aluminum3 kno₃ + al  → al(no₃)₃ + 3 ksodium phosphate and zincnaso₄ + zn  → znso₄ + na

It's called the falling actionwrong subject by the way