For example, copper and gold are elements ... There are very many different compounds and all compounds are molecules. Carbon dioxide is a compound of carbon and oxygen, chemically joined together.

For example, we've got lead and we've got ... The black circles are carbon atoms and the red ones are oxygen. Carbon dioxide molecules contain one carbon atom and two oxygen atoms.

Most organic compounds contain carbon and hydrogen, but they may also include any ... biotechnology, and medicine. Examples of where you can find organic compounds include agrichemicals, coatings, ...

These sugar molecules are the basis for more ... and they provide a dramatic example of this cycle at work. The carbon cycle would not be possible without photosynthesis, because this process ...