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Classify it as chemical,
the heat is used mainly to speed up the reaction.
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∙ 12y ago
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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 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.
How is baking bread a chemical change?
Yes, yes it is!
Difference between a physical change and a chemical change?
A chemical change is the change of one or more substances into other substances. A physical change is when the state or shape of matter is changed. In a chemical change molecules are combined or beak apart to form new substances.Rusting iron is an example of a chemical change. crushing a can or tearing paper can be an example of physical change.
What is a chemical change?
A chemical change is a change in which a substance turns into a completely different substance that can't be reversed. A chemical change often happens when a substance burns (not to be confused with evaporation or melting of a substance), changes colors, a substance spoils or rusts, photosynthesis or respiration, and/or a substance tarnishes.Some examples are a bike rusting, burning bread to make toast, fireworks exploding, milk spoiling, a leaf changing color, mixing eggs and flour for a batter, baking a cake, etc.A chemical change will NOT dissolve, go through a state of matter (sublimation, decomposition, melting, freezing, evaporation, and condensation), breaking or tearing of a substance, and/or anything that can be reversed back.A chemical change is one in which one or more new substances are formed. Simple examples include burning and rusting.
Is baking bread physical change?
bread is a chemical change, not a physical change
Is baking bread a chemical or physical change or property?
Chemical.
Is baking a loaf of bread physical or chemical change?
This is a chemical change.
How do you know that baking bread is a chemical change and not a physical change?
Its a chemical change because its changing what it is (from dough to bread)
Is baking dough into bread a chemical or physical change?
chemical change. something that has to do with the heat.
Is slincing bread physical or chemical change?
Slicing bread is a physical change because it does not change the chemical composition of the bread.
Is slicing a bread a chemical or a physical?
Slicing bread is a physical change, because each slice of bread has the same chemical composition as it had before it was sliced.
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 bread a physical or chemical change?
chemical
How is toasting bread chemical or physical change?
It is a chemical change because you can not return it to bread
Is bread breaking a physical or chemical change?
Physical
Is toasting a bread a chemical or physical change?
chemical change
