Which type of bond is primarily formed during a chemical change?

In the context of chemical changes, covalent bonds play a crucial role because they involve the sharing of electron pairs between atoms, resulting in the formation of molecules that are integral to chemical reactions. When a chemical change occurs, such as in synthesis or decomposition reactions, new substances are formed through the rearrangement of atoms. The formation of these new substances is often facilitated by the establishment of new covalent bonds as atoms bond to create more stable configurations.

Covalent bonds are strong and can provide the necessary stability to the new compounds formed during chemical reactions. For example, during the synthesis of water, hydrogen atoms covalently bond with oxygen, resulting in a molecule that has distinct properties different from the individual elements. This fundamental characteristic of covalent bonding underlies the variability and complexity of organic and inorganic compounds that emerge as a consequence of chemical changes.

In contrast, while ionic, hydrogen, and metallic bonds are important in various contexts, they are either characteristic of particular types of substances or play less prominent roles during the bond formation involved in chemical reactions as described above.