This would be a irreversible change. If you think about it, if you let the bread sit after being toasted it will not become un-toasted. It may become mushy after time but once you toast it its toast.
No
no
yes
chemical change is easily reversible whilst physical is not reversible
A reversible change is a change you can make, then put back, however a non-reversible change is a change you can make, then it will be stuck like that
the difference between a physical change and a chemical change is that a physical change is usually reversible whilst a chemical change is not reversible.
This is a physical change. You only change the shape and size of an apple by slicing it. Chemical changes would mean changing the molecular composition of the apple.
A physical change is reversible, a chemical change is not.
Slicing bread is a physical change, because each slice of bread has the same chemical composition as it had before it was sliced.
slicing bread is considered a physical change because the bread is still bread after it is sliced. A chemical change for bread is the ingredients mix together to make bread
It is a physical change
Yes
It is a physical change
Slicing bread is a physical change because it does not change the chemical composition of the bread.
No. It's because it can not be reversible.
That is a chemical change. Physical changes can be undone. Burning a bit of paper is another non-reversible change.
Baking bread is an irreversible change; there is no way to unbake bread. The baked bread cannot be converted back to the dough that it was before being baked.
ripping paper slicing bread trimming nails
Physical ------------------- It is a chemical change because some compounds from bread are thermally decomposed. The reaction is not reversible.
Yes because it is a chemical reaction and these reactions are irreversible