Question

What is molecules?

Answer 1

Molecules are composed of two or more atoms that are chemically bonded together. They are the smallest units of a chemical compound that retains the chemical properties of that compound. Molecules can be simple, such as the oxygen molecule (O2), or complex, like the DNA molecule.

Answer 2

Molecules are the smallest units of a chemical compound that retain the chemical properties of that compound. They are made up of two or more atoms that are chemically bonded together. Molecules can be simple, like the oxygen molecule (O2), or complex, like the DNA molecule.