Chemical bonds are broken by the energy that is released during the chemical reaction. This energy is created by the movement of electrons from one molecule to another as they attempt to achieve a chemical balance. The breaking of chemical bonds can easily be identified because they are often accompanied by physical changes as the original elements used in the chemical reaction take on new forms or become new elements.Continue Reading
According to Chemtutor, the Law of the Conservation of Mass states that there will always be the same amount of matter before and after a chemical reaction. This happens on the chemical level when molecules break apart, join together, or lose and gain electrons to form new elements. It also happens on the physical level when the chemical reaction causes elements to change their form. However, no matter can be created or destroyed during this reaction. It can only change form.
One example of a chemical reaction is the breaking down of simple sugars during fermentation. The carbon in the sugars reacts with oxygen in the air. Some of the carbon bonds in the sugar break and rejoin with the oxygen bonds to form carbon dioxide molecules. The remaining molecules form the chemical C2H5OH, which is ethyl alcohol.Learn more about Atoms & Molecules
An exothermic reaction is a chemical reaction wherein energy is released in the form of light, heat, or sound. Reactions such as this can occur spontaneously.Full Answer >
In a chemical reaction, the stage during which atoms have the highest energy is the transition state. According to transition state theory, the transition state is a hypothetical intermediate phase that exists between the reactants and products during the course of a reaction. In a diagram showing reactant and product energies versus the reaction's course, the top part of the curve that forms is called the transition state.Full Answer >
Chemical reactions occur when two molecules collide with each other in a certain orientation and amount of force, which causes a chemical change due to the breaking and forming of the bonds between the atoms. Bonds are broken and formed due to the movement and sharing of electrons between atoms without any change to the nuclei.Full Answer >
Chemical equations are illustrations of the reactants and products in a chemical reaction. Chemical equations are expressed as A + B -> C, where A and B are the reactants, and C is the product.Full Answer >