No. It's a chemical change because the process is irreversible, there is a change in colour and a change in odour.
Yes,it is a physical change.
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.
Yeast rising bread works because yeast (an organism) converts starch to carbon dioxide which makes bread grow. This can be seen as a chemical reaction (yeast converting starch to CO2 gas) or a physical reaction (the CO2 making the bread expand).
Classify it as chemical, the heat is used mainly to speed up the reaction.
Physical change of the paint, not the door.
this is a physical change
Physical cause it is still bread
It is a chemical change.
physical change
"toasted bread" would most likely be a chemical change, because the protein that made up the bread is changing into C(Carbon)
Both.
Yes
This is a physical change and might include a chemical change due to the heat involved in taking the bread to its final appearance. the physical change because, there is a change in color(colour) and a slight change in shape depending on the toaster you are using.
Yes it is a physical change
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.
bread is a chemical change, not a physical change
physical because its doesn't matter if toasted or not it's still made out of bread or might be chemical cause if it changes colors that's one of the signs of a chemical change look it up on goggle this is some peoples opinion so u don't know if it's right or not
Cutting bread is a mechanical or physical change, not a chemical change.