Slicing bread is a physical change because it does not change the chemical composition of the bread.
chemical
chemical change
chemical
Physical cause it is still bread
Both, the reddish spots are rust and a chemical change. You will also find (after you have rubbed off the rust) that the surface of the knife is pitted. These pits are a physical changed caused by the chemical reaction.
Slicing bread is a physical change because it does not change the chemical composition of the bread.
bread is a chemical change, not a physical change
Slicing bread is a physical change, because each slice of bread has the same chemical composition as it had before it was sliced.
Physical
chemical
No, slicing bread is a physical change. The act of cutting the bread into smaller pieces does not alter its chemical composition.
chemical
It is a chemical change.
chemical change
chemical change
It is chemical change