Question

Are all the changes taking place in substances permanent, temporary or reversible? (Page 35)

Answer 1

Answer:

Permanent Change - It is defined as the type of change which is done for a long period of time or are fixed cannot be changed.

Temporary Changes are those which occur for short period of time which may be physical changes.

Reversible change is such change where it can be brought back to its original form after the change occurs.

All the changes taking place in substances are permanent , temporary or reversible. This statement is not true, at a time in a substance it can occur only one change. There are chemical changes and irreversible changes as well, therefore not all changes in a substance are permanent , temporary or reversible it may be chemical or irreversible as well.

Answer 2

Answer:

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