Is 214 degrees celsius hot or cold also what is the temperature of neptune as of how cold it gets?

Any positive number of Celsius is going to be above freezing. 0°C is the freezing point of water. 100°C is the boiling point of water. So 214°C is going to be extremely hot, as it is well above 400°F which is around the temperature many ovens use to cook food. 

As for Neptune, what I could find out is the the surface is around negative 200°C which is extremely cold.

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