It is a chemical change as it releases gases into the air.
It is a chemical change.
chemical
chemical
chemical
Cracking of petroleum is a chemical process.
It is a chemical reaction because it changes and the change can't be revesed
Cracking an egg is a physical change, not a chemical change.
chemical
chemical
chemical
Physical
Cracking of petroleum is a chemical process.
It is a chemical reaction because it changes and the change can't be revesed
Cracking an egg is a physical change, not a chemical change.
It is a physical change because the chemical composition of the glass does not change.
[object Object]
It is a chemical reaction because it changes and the change can't be revesed
It's a physical change. Anytime you change the shape or appearance it is physical.
Use of fireworks is a chemical change.