Chemical Changes the substance and physical really dont change it as much examples of chemical: burning wood, physical: painting it Physical is basically changing color, looks,
It is a physical change.Density is not a chemical property. Instead, it is a physical property.
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
Burning is a chemical change.
Physical change of the paint, not the door.
Its a physical change
Physical - because you're changing the appearance - not the composition of the wall.
Because during painting the chemical structure of the dyes (the chemical formula of the molecule) remain generally unchanged.
I guess it could be chemical, but really- it's a physical change
Paneling a room, or in other words applying wood panels to the walls of a room in order to modify the look and feel of the room, would be a physical change and not a chemical change because you are changing the physical properties of the room and not the chemical composition of the room.
No, painting a door is a physical change, not a chemical change. The paint is simply adhering to the surface of the door through physical means such as drying and curing, rather than undergoing a chemical reaction to form new substances.
Chemical Changes the substance and physical really dont change it as much examples of chemical: burning wood, physical: painting it Physical is basically changing color, looks,
Painting a door is a physical change because the appearance of the door was changed. It is not a chemical change because it didn't chance its composition. After painting the door it still remained a door, just a different color.
Spray painting a car involves a chemical change because the paint chemicals react to form a new substance that bonds to the surface of the car's body. This is different from a physical change, where the paint would simply be a new layer on top of the car without a chemical reaction occurring.
A physical change
Both, strangely enough. Applying the paint to the car is a physical change. The paint is a polyurethane compound. When you get it, it's in at least two containers - the paint, and a hardener. Stir them together and they undergo a chemical change.