Homeostasis is important and therefore most diseases can be regarded as a result of its disturbance which is known as . A) Homeostatic imbalance B) Set point malfunction C) Lack of balance D) Negative feedback E) Homeostatic disease

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

Not a  mixture of two common elements that can be separated by physical means.