A student dissolving some ammonium nitrate (NH4NO3) in water notices that the beaker gets cooler as the solid dissolves. This is an example of . Group of answer choices a solvation process a combustion reaction an exothermic reaction an endothermic process

If you explain it more through i will answer it : )

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