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FireworksĬhemical reactions involving a few critical components, such as a fuel source (typically charcoal-based black powder), an oxidizer (oxygen-producing compounds such as nitrates and chlorates), and a color-producing chemical mixture make fireworks. Large food particles are broken down into smaller components that can be absorbed more easily into the bloodstream during digestion.Ĭarbohydrates are burned during bodily processes to produce energy, giving out carbon dioxide and water.

Digestionįood digestion is a combination of mechanical and chemical processes. The movement of electrons is known as electricity, and it can be generated by moving electrons from one element to another in an oxidation-reduction (“redox”) reaction. The study of chemical reactions that cause electrons to move is known as electrochemistry. Any chemical reaction in which the oxidation number of a molecule, atom, or ion changes by gaining or losing an electron is known as an oxidation-reduction process. OxidationĪn oxidation-reduction (redox) reaction is a type of chemical reaction in which two species exchange electrons.

Cellular RespirationĬellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy from oxygen molecules or nutrients into adenosine triphosphate (ATP), and then release waste products. This signifies that light energy captured by chlorophyll (implied by the arrow) converts the reactants, six carbon dioxide molecules, and six water molecules, into a sugar molecule and six oxygen molecules, the products. Photosynthesis is represented by a chemical reaction. The properties of the products are vastly different from those of the reactants.Ĭakes are harder and have a superior flavor than individual cookies.

These react with one another to generate the product, which is an entirely new substance. The reactants are the ingredients that begin a chemical reaction. Examples of Chemical Reactions in Everyday LifeĪ Closer Look at Examples of Chemical Reactions CookingĬhemical reactions are beneficial in the kitchen and aid in the enhancement of food flavor.Ĭooking and chemistry share a lot of similarities. The number of atoms is the same before and after the chemical transformation, but the number of molecules is different. The constituent atoms of the reactants are rearranged in a chemical reaction, resulting in the formation of various substances as products. Chemical elements or compounds are examples of substances. What Are Some Physical and Chemical Changes?Ī chemical reaction occurs when one or more compounds, known as reactants, are changed into one or more distinct substances, known as products.