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Is bread rising when yeast is added a physical or chemical change?
Wiki User
∙ 11y ago
A chemical change
Because it takes plave in an oven and the yeast is rising without human help
Wiki User
∙ 13y ago
Wiki User
∙ 11y agoYeast causes both physical and chemical changes to bread dough. It digests sugars which produces gas (chemical changes,) which in turn lifts the dough's mass (physical change.)
Wiki User
∙ 14y agoNo, because the dough is a solid, and the bread when it's done is a solid. But if you cook the bread too long at a high temperature, it will turn to ash, which WOULD be a physical change.
Wiki User
∙ 11y agoA chemical change because it causes the bread to rise. Also, the yeast can't be changed back into its original form after the change took place.
Wiki User
∙ 12y agoI think it's Chemical Change
Anonymous
no
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