Is action baking powder in cooking a cake physical change?
Yes, the action of baking powder in a cake is a physical change. Here's why:
* Physical Change: A physical change alters the form or appearance of a substance but doesn't change its chemical composition.
* Baking Powder's Action: Baking powder releases carbon dioxide gas when it's mixed with water. This gas creates bubbles in the cake batter, making it rise. The carbon dioxide is simply trapped in the cake batter, it doesn't change the chemical makeup of the ingredients.
In contrast, a chemical change would be:
* Changing the chemical composition: For example, when you cook an egg, the protein in the egg undergoes a chemical change, resulting in a solid cooked egg.
Therefore, even though the cake rises and changes shape, it's still made of the same ingredients. The change is physical, not chemical.
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