Question

change which occurs heating but cannot b reversed

Answer 1

Answer:

mixing of salt in water

Explanation:

mixing of salt in water is a change that can be reversed by heating and melting of salt. b]The softening of iron on heating to red hot stage is a reversible change. And when the hot iron is cooled, it becomes hard again. ... Melted wax was getting solidified.

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Answer 2

Answer:

Chemical change

Explanation:

Example :- burning of wood.

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