# Distinguish between organic and inorganic molecules?

Jan 31, 2018

See the explanation below.

#### Explanation:

Organic molecules are molecules that contain carbon-hydrogen bonds. Almost all organic molecules are hydrocarbons. They are called organic because they are essential for life to exist.

Some examples of organic molecules include:

Methane $\left(C {H}_{4}\right)$

Glucose $\left({C}_{6} {H}_{12} {O}_{6}\right)$

Ethanol $\left({C}_{2} {H}_{5} O H\right)$ or $\left({C}_{2} {H}_{6} O\right)$

Here is a picture of some more:

As you can see here, all of them contain carbon and hydrogen in their chemical structure.

I think you can guess then what are inorganic molecules. Well, they are molecules without carbon-hydrogen bonds. While they still can contain carbon compounds, such as $\left(C {O}_{2}\right)$, or hydrogen compounds, such as $\left({H}_{2} O\right)$, they are not allowed to have carbon-hydrogen bonds, so molecules like $\left({C}_{2} {H}_{6}\right)$ are not considered inorganic.

However, some are still essential for life, such as

Water $\left({H}_{2} O\right)$

Oxygen gas $\left({O}_{2}\right)$

But mainly, some can be quite common compounds, with examples like

Rust $\left(F {e}_{2} {O}_{3} \cdot n {H}_{2} O\right)$

Table salt $\left(N a C l\right)$

Hydrochloric acid $\left(H C l\right)$

Here are pictures of the compounds I've mentioned above:

Rust

Salt

Hydrochloric acid

I hope my explanation was clear!