The system remain unchanged.
A fire is a chemical change due to the irreversible changes that happen.
A physical change
Physical change of the paint, not the door.
This is a physical change. The bubbles are pockets of steam which is the same chemical as water, just in a different state.
it is a chemical change
Crushing charcoal into powder is a physical change, as it alters the size and shape of the charcoal without changing its chemical composition.
An acid is a chemical compound, not a physical or chemical change.
It is a physical change.Density is not a chemical property. Instead, it is a physical property.
Chemical broooooooooooooooo niga
Physical change is a change in the structure. Chemical change is a change in the composition. Melting is a physical change. Complexing is a chemical change.
Physical change
A change in temperature can change the rate of physical or chemical change.