Understanding Chemical Bonds and Reactions

The Basics of Chemical Bonds and Reactions

Chemical bonds are the forces that hold atoms together in molecules. There are three main types: ionic, covalent, and metallic bonds. Ionic bonds occur when one atom transfers electrons to another, while covalent bonds involve the sharing of electrons. Metallic bonds are found in metals, where electrons move freely between atoms.

Chemical reactions happen when bonds between atoms are broken or formed, resulting in new substances. Examples include combustion, oxidation, and acid-base reactions. Explore key terms and concepts related to chemical bonds and reactions!

Did You Know?

• Water (H2O) is an example of a molecule with covalent bonds between hydrogen and oxygen atoms.
• In ionic bonds, one atom donates electrons to another, creating charged ions that are attracted to each other.
• Exothermic reactions release energy, while endothermic reactions absorb energy.
• The law of conservation of mass states that matter cannot be created or destroyed in a chemical reaction.