Question

A chemical change is accompanied by :-
a) heat. b) Gas.
c) Sound. d) all of these.​

Answer 1

mate, checmival change is accoomannwd by heat, as in terms of chemistry and chemical cnage it has a vital role

and exothermic and endothermic are also,so option a heat

mark mas brainliest

Answer 2

A chemical change is accompanied by heat