Cooking involve a chemical change.
Cooking an egg or burning logs on a fire.
At least 2 of the reactants must change their chemical formula.
A fire is a chemical change due to the irreversible changes that happen.
No chemical change happens, though a consequential change probably will.
yes
Depending on the chemical change, sometimes color change, or appearance of bubbles.
the chemical shall be changed
no.
Cooking involves chemical changes.
The system remain unchanged.
This does not happen, they are quite differenwell sometime chemical change into nuclear by going to thermal energy
The chemical properties cannot be changed; only after a chemical reaction the products have new chemical properties.