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Yes it is, because you can change it into liquidand then leave it to set so it will change back dead hard.
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∙ 14y ago
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Is toasted bread a physical or a chemical change?
"toasted bread" would most likely be a chemical change, because the protein that made up the bread is changing into C(Carbon)
Explain what is an irreversible change and give an example?
cutting yourself. the scar would always be there....
Are blueing crystals a reversible or irreversible change?
irreversible
Is a candle burning reversible or irreversible?
irreversible change.
Is the toasting of bread a physical or chemical change?
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.
Is slicing bread a reversible 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.
Is toasted bread a physical change?
No. It's a chemical change because the process is irreversible, there is a change in colour and a change in odour.
Is toasted bread a permanent change?
Yes
Is toasted bread a physical or a chemical change?
"toasted bread" would most likely be a chemical change, because the protein that made up the bread is changing into C(Carbon)
Is a bread toasted a physical or chemical change?
It is a chemical change.
Is toast irreversible?
Once the slice of bread has been toasted (charred) it can't be turned back into the original untoasted state.
Why is toast irreversible?
Once the slice of bread has been toasted (charred) it can't be turned back into the original untoasted state.
Is bread toasted a physical or chemical change?
Physical cause it is still bread
What kind of change occurs on the surface of bread it is toasted?
physical change
Is toasting bread is reversible change?
Yes because it is a chemical reaction and these reactions are irreversible
How does bread turn to toast?
with or without jam It's an irrversible change because you can't turn it back to regular unbrowned bread.
Explain what is an irreversible change and give an example?
cutting yourself. the scar would always be there....
