EARTH SCIENCE
MAGNETISM
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
chemical because you create a new substance
|
|
|
chemical because it produces an odor
|
|
|
chemical because it is irreversable
|
|
|
All of the above
|
Detailed explanation-1: -Once the cake is formed, we cannot get back the original batter and the chemical composition of cake is different from that of batter. In any physical change, the chemical composition of a substance does not change. Hence baking of cake is not a physical change but a chemical change.
Detailed explanation-2: -When you bake a cake, the ingredients go through a chemical change. A chemical change occurs when the molecules that compose two or more substances are rearranged to form a new substance! When you start baking, you have a mixture of ingredients. The flour, egg, sugar, etc.
Detailed explanation-3: -As you bake a cake, you are producing an endothermic chemical reaction that changes ooey-gooey batter into a fluffy, delicious treat!
Detailed explanation-4: -Answer and Explanation: a. Baking of cake is a chemical change.
Detailed explanation-5: -Baking of cake is an example of Irreversible change.