Final answer:
A compound is a molecule made up of different elements, while not every molecule is a compound.
Step-by-step explanation:
Every compound is a molecule because a compound is made up of two or more different elements chemically combined together. These atoms are held together by chemical bonds to form a molecule.
On the other hand, not every molecule is a compound. Some molecules are made up of atoms of the same element bonded together, such as oxygen gas (O2) or nitrogen gas (N2).
For example, water (H2O) is a compound because it is made up of hydrogen (H) and oxygen (O) atoms bonded together. However, hydrogen gas (H2) and oxygen gas (O2) are molecules but not compounds because they consist of only one element.
Learn more about Difference between compounds and molecules