Question

Myra wants to make a list of chemical changes that occur in her surroundings. But she is confused in certain
cases. How can she identify the chemical changes? Name all the characteristics of chemical changes to help her
and give one example for each.​

Answer 1

Answer:

The following are some characteristics and examples of chemical changes:

Color Change.

Production of an odor.  (Rotten egg gives the smell of burning sulphur)

Change of Temperature.  (Burning of magnesium ribbon)

Evolution of a gas (formation of bubbles)

Precipitate (formation of a solid)

Chemical changes are irreversible.

Hope this helps!