By compressing a bottle of mustard in your hands, you get 60 ml of mustard in 5 seconds. Calculate the mustard flow.

12 ml per second is the mustard flow. So for every second, Your losing 12 ml of mustard.

Rethink and reinvent

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