when a chemical change occurs, chemical bonds are broken up
it will change to liquid
when a chemical change occurs, chemical bonds are broken up
Atoms change the position from a molecule to another.
The chemical composition of foods is changed during cooking.
it stays da same
There are no chemical changes.
The chemical nature of the matter is changed; new compounds with new chemical formulas are formed.
Definitely a chemical change, for the process is irreversible.
Mass is conserved. This means it remains constant.
Catalysts doesn't undergo a chemical change during a chemical reaction.
They break and new bonds are formed
This is a chemical change because of the change of molecular bonds.