What is a chemical reaction?

Defining a Chemical Reaction00:00:09

A chemical reaction occurs when two different substances meet and combine with each other.

Baking Soda and Vinegar Example00:00:21

Baking soda (alkaline) and vinegar (acid) cause a chemical reaction, releasing carbon dioxide gas, which results in bubbling. Adding washing-up liquid thickens the solution and continues the bubbling, often used in school science to simulate volcanoes.

Chemical Reactions in Baking00:01:11

Baking a cake involves combining ingredients like flour, sugar, butter, and eggs. These substances, when combined and heated, undergo a chemical reaction that solidifies the liquid mixture into a cake.

The Role of Baking Soda in Cake00:01:41

Adding baking soda to cake mixture enhances the chemical reaction during baking. The alkaline baking soda reacts with acids in the mixture, producing carbon dioxide that makes the cake rise and gives it a spongy, light texture.