Question

All organic molecules have what element in common

Answer 1

Answer: The elements which are common for all organic molecules is hydrogen and carbon.

Step-by-step explanation:

Another name for organic molecules are hydrocarbons. This means that the molecules which consist of hydrogen and carbon atoms is an organic compound.

For Example:

`H_2O\text{ and }CO_2` are not organic compounds, because in water, carbon is not there and in carbon dioxide, hydrogen is not there. But,
`CH_4` is an organic compound because hydrogen and carbon both are present.

Hence, hydrogen and carbon elements are common to all organic molecules.

Answer 2

Every organic molecules/compound contains carbon (c).

Some other very abundant are hydrogen, nitrogen, oxygen, phosphorus, and sulfur.

I learned this with the acronym CHNOPS.

C - Carbon

H - Hydrogen

N - Nitrogen

O - Oxygen

P - Phosphorus

S - Sulfur

Hope this helps!