Yes, it is. The process by which heat changes the molecules of the bread from white and soft to brown and crispy is a chemical change.
A chemical change does NOT mean you have to add chemicals. It just means the chemicals (molecules) in the substance changed their chemistry.
So slicing bread is a physical change, but toasting it is a chemical change.
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chemical
it is a physical change
physical- cutting something curling your hair making steam freezing something Chemical- burning a candle toasting toast peroxide on a cut.
It is a chemical change. Look at the explanation below the picture of the rusting nail. With toast a new substance has been formed due to the heat which caused the chemical change.
in changes. Physical changes can be reversed. E.g. if you were to melt a block of ice, and then freeze it again, it would to some degree be reversed. This is a physical change. However, if you were to burn a peace of toast, the change would be chemical. Once the toast is burnt you cant get it back.
It is a physical property. A chemical property would involve the butter reacting to the toast, but the butter is actually reacting to the heat from the toast. The butter would melt against any surface hot enough, where as butter would not melt on cold toast. Hence, the reaction to heat makes it a physical property. (A relatively easy way to remember is that physical properties deal with the transfer of physical energy or force such as heat, inertia, etc. Chemical properties occur when two material substances trade molecules or electrons.)
Because your $1,000 toaster is broken.....please buy a new one!! :)
chemical
It is a chemical process.
Burning toast would be a chemical change. The bread would be changed into carbon and the reaction can not be reversed.
You can use a toaster oven to toast. However, you can not bake and toast at the same time. That would lead to burning the toast.
It is kind of both....The chemical: The toast loses its water molecules and so loses most of its H2O.The Physical: The toast becomes hard and crunchy from soft and airy.Added:The toast burning is a total physical change, not chemical. Water loss from the toast is not a chemical change as species have not changed partners ( atoms have not rearranged into new species ) and H2O remains the molecule H2O, water.
It is kind of both....The chemical: The toast loses its water molecules and so loses most of its H2O.The Physical: The toast becomes hard and crunchy from soft and airy.Added:The toast burning is a total physical change, not chemical. Water loss from the toast is not a chemical change as species have not changed partners ( atoms have not rearranged into new species ) and H2O remains the molecule H2O, water.
It is a chemical change.
Chemical
Physical change, because you are not permanently changing the substance. Also you can change the two substances back to how they originally were
It depends, how much toast do you have.... It also depends on how many toast your toaster can toast.
Burning toast is a CHEMICAL change. A physical change is reversable-for example, you can freeze water into a cube and then defrost and reconvert to water. Burning is always a chemical change. In order for something to burn, some of the original substance must be lost and therefore cannot be turned back into its original form