Simple Molecules:
* Water (H₂O): Two hydrogen atoms bonded to one oxygen atom.
* Oxygen (O₂): Two oxygen atoms bonded together.
* Carbon Dioxide (CO₂): One carbon atom bonded to two oxygen atoms.
More Complex Molecules:
* Glucose (C₆H₁₂O₆): A simple sugar with six carbon atoms, twelve hydrogen atoms, and six oxygen atoms.
* Ethanol (C₂H₅OH): The alcohol found in alcoholic beverages.
* DNA (Deoxyribonucleic acid): A long, complex molecule that carries the genetic instructions for an organism.
* Proteins: Large, complex molecules made up of chains of amino acids. These are essential for building and repairing tissues, transporting substances, and fighting disease.
Let's break down why these are molecules:
* Molecules are formed when two or more atoms bond together. The bonds can be covalent (sharing electrons) or ionic (transferring electrons).
* Molecules have a specific three-dimensional structure. This structure is crucial for their function.
* Molecules can be made up of the same type of atom (like O₂), or different types of atoms (like H₂O).
Do you want to learn more about a specific molecule? I can give you more information about its structure, function, or properties!