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phsical
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∙ 6y ago
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Is toasting bread a chemical or physical reaction?
Toasting bread is a chemical reaction.
Is bread becoming toast a physical change or a chemical change?
chemical change
Is breaded toast a physical or chemical change?
Toasting bread represents a chemical change.
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 toast physical change or chemical change?
Making toast is a chemical reaction because you can't change it back into untoasted bread.The drying of the bread is physical but the actual caramelization or darkening of the outer bread layer is a chemical change. The outer edges of the bread are beginning to char. Generally, a color change is an indicator of a chemical change.
Is burning toast a physical change?
Burning toast would be a chemical change. The bread would be changed into carbon and the reaction can not be reversed.
Is a toast a chemical or physical change?
Chemical
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 yeast causing bread to rise is a physical or chemical change?
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).
Is burning toast is a physical or a chemical change?
chemical
Is unburned toast a chemical or physical change?
physical
Does toast come from cows?
No. Toast is bread that has been exposed to heat to be toasted. Toast and bread have nothing to do with cows, and the making of bread also has nothing to do with cows and does not come from cows at all.
