i think chemical change because by burning of gas,a new gas is formed.
A fire is a chemical change due to the irreversible changes that happen.
chemical
Its a chemical change because the properties of charcoal are changing when fire makes contact with it. It is realising energy and that is one of the most important signs to know if it is a chemical reaction.
Burning is a chemical change.
Burning is a chemical change.
chemical
Chemical.
Chemical.
chemical
chemical
Penis
phisical