Question

write a short note on chemical changes​

Answer 1

Thanks for your question...

Your required answer :

• Chemical changes are not irreversible.
• They need more energy.
• In chemical change state such as colour , temperature , smell , gas changes.
• In chemical change heat or energy is evolved.
• E.g. Respiration , Curd etc.

Brainliest Please

Answer 2

A chemical change happens when one chemical substance is transformed into one or more different substances, such as when iron becomes rust. Chemical changes occur through the process of chemical reactions, and the resulting substances have different properties because their atoms and molecules are arranged differently.