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Is burning toast in the toaster physical or chemical?
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.
Is butter melting on toast a chemical or a physical change?
it is a physical change
Is toasting bread an example of a physical or a chemical change?
Yes it is, as the browning of the bread when you toast it, is a reaction between the reducing sugar and amino acids. The reaction is called Maillard reaction. In simpler words, the bread is being "burned" which is a chemical change as it cannot be reversed. You can't get back the same soft,fluffy, white bread after you toast it.
Is butter melting on warm toast a chemical or physical property?
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.)
Is toast a hetrogenous mixture?
No, toast is not a heterogeneous mixture. It is a product resulting from the chemical transformation of bread when it is exposed to heat, leading to the Maillard reaction that causes browning and flavor changes.
Is turning bread into toast a physical or chemical change and why?
It is both. You dry the moisture out of the bread. However, the browning is a chemical change, as the chemical bonds are changed.
Is a toast a chemical or physical change?
Chemical
Is burning toast is a physical or a chemical change?
chemical
Is unburned toast a chemical or physical change?
physical
Is burning toast a physical or chemical state?
It is a chemical process.
Is buttering toast a physical or chemical change?
Physical change.
When toast is cooked what change occurs physical or chemical?
Chemical, because the disaccharide in toast when heated become hard thus giving you toast
Is butter on toast a chemical change or a physical change?
it is a physical change
Is browning apple slice chemical or physical?
chemical reaction.
Is making toast bread physical or chemical?
phsical
Is burning toast in the toaster physical or chemical?
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.
Is a burning toast a physical or chemical change How do you know?
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.
