Heat is added to a substance, but its temperature does not rise. Which one of the following statements provides the best explanation for this observation? (a) the substance must be a gas. (b) the substance must be a non-perfect solid. (c) the substance undergoes a change of phase. (d) the substance has unusual thermal properties. (e) the substance must be cooler than its environment.

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

C. chemical changeshope i : )

I'm sorry but i'm only grade