In a reaction, your actual product had a mass of 13.7 grams. You calculated that you need 29.3 grams to have the reaction go to completion. What is your percent yield?

They are all full and don't need any more electrons in there outer shell.

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

Hi; /c

The answer is 4 i don't know if its right let me see.