Do all organic molecules contain carbon, hydrogen, and oxygen?

Risposta:

No, but they all contain carbon and hydrogen.

Spiegazione:

Almost all organic molecules contain carbon and hydrogen, and many contain other elements as well.

For example, ethane is "CH"_3"CH"_3. It contains only carbon and hydrogen.

Ethanol is "CH"_3"CH"_2"OH". It contains oxygen as well.

Glycine is "H"_2"NCH"_2"COOH". This one adds nitrogen.

There are many more examples, but all contain carbon and hydrogen.