Three chemical reactions in a kitchen occur when a cook bakes a cake, boils an egg or grills a hamburger. Chemical reactions happen when food spoils, such as when milk goes sour and bananas rot. A match that lights a candle or a stove's burner also uses a chemical reaction.
Some chemical reactions in kitchens are less obvious. For instance, when an individual washes dishes with detergent, the cleanser has chemical interactions with grease and other residue. Also, when people digest food, chemical reactions occur.
When a chemical change takes place, chemical bonds between atoms are broken and new combinations form. Therefore, new substances are created. In addition, results are not reversible.