The solubility product of Mg(OH)2 is 1.2 × 10-11. What minimum OH^- concentration must be attained (for example, by adding NaOH) to decrease the Mg^2+ concentration in a solution of Mg(NO3)2 to less than 1.0 × 10-3 M FeSO4.

If it releases 5 tons a day and there are 7 days a take that answer and multiply by 5 percent (0.05) to find the amount released in one week. leave a comment if you need more .

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

B. a graduated substance