Atemperature change in a reaction

a physical change
no change
a chemical change
a positive change

A temperature change in a reaction indicates a chemical reaction.

Explanation:

Chemical change: is a process in which new substance is formed and energy is released with change in the temperature.

Example of chemical change

Physical change:It is a process where a new compound is formed but there is a change in shape and size.

Example of Physical change

currents is the correct answer.

idk what the options are but

these is a strong electrostatic attraction between the ions hence a lot of energy is needed to overcome this attraction

this is why the boiling points are so high