Question

mention two irreversible chemical changes and explain why?​

Answer 1

Explanation:

Mixing substances can cause an irreversible change. For example, when vinegar and bicarbonate of soda are mixed, the mixture changes and lots of bubbles of carbon dioxide are made. These bubbles and the liquid mixture left behind, cannot be turned back into vinegar and bicarbonate of soda again.

Answer 2

Answer:

1. ripening of fruits is an irreversible change because fruits get roopen due to chemicals persent naturally in them and we can't convert rippened fruit into raw fruit.It makes difference in its smell, taste , colour and texture.

2. burning of wood is an irreversible change because when wood is burnt it is converted into ash and carbon dioxide, and we can't put ash and carbon dioxide back in wood.