Stress was added to the following reaction and this was the result:
As4O6 + 6C <-> As4 + 6CO
The equilibrium shifted to the right and the reverse reaction decreased.
Select all factors that would have caused this observation.

1. CO was added to the system

2. As4 was added to the system

3. As4 was removed from the system

4. As4O6 was removed

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